Smoky Low Carb Steak Fajita Bowl: Quick Keto Dinner

Featured in Healthy & Light.

Craving a flavorful Low Carb Steak Fajita Bowl? This easy keto dinner comes together fast, packed with tender steak, peppers, and bold spices.
Hiroshi Tanaka - Recipe Author
Updated on Wed Feb 11 2026 at 01:51 PM
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Smoky Low Carb Steak Fajita Bowl: Quick Keto Dinner | Rapidos Recipes

I remember the first time I ever had fajitas. It was at a bustling Tex-Mex joint, sizzling platter and all, and honestly, the smell alone made my heart sing. Fast forward a few years, and while I still adore that classic experience, my body started asking for something a little lighter, a bit more... keto-friendly. That's when I dove headfirst into creating a Low Carb steak Fajita Bowl that captured all that vibrant flavor without the carb overload. It took a few tries, a few “oops, too much chili powder!” moments, but this version? It’s pure joy in a bowl, a weeknight dinner hero that brings the restaurant vibe right into my sometimes-chaotic kitchen.

One time, I was so excited to get these Low Carb steak Fajita Bowls on the table, I totally forgot to preheat my cast iron pan. The steak just sat there, steaming instead of searing, and I ended up with sad, grey strips instead of beautifully caramelized ones. Lesson learned: patience is a virtue, especially with a hot pan! My family still teases me about "the great steam incident of '22."

Ingredients for Your Low Carb Steak Fajita Bowl

  • Flank Steak: This cut is fantastic for fajitas because it cooks quickly and slices beautifully against the grain. I swear by it for that perfect tender bite, don't even think about using anything too thin or too thick, it just won't be the same.
  • Bell Peppers (Red, Yellow, Green): The holy trinity of fajita veggies! They add so much natural sweetness and a gorgeous pop of color. I've tried just one color, and while it works, the mix makes it visually stunning and flavor-rich, honestly.
  • onion (Yellow or White): Essential for that classic fajita aroma and flavor. Slice it thin, it caramelizes beautifully alongside the peppers. I once forgot onion and the whole dish felt... incomplete.
  • Olive Oil: My go-to for searing the steak and sautéing the veggies. A good quality extra virgin olive oil makes a difference, really. Don't skimp here, it’s about flavor!
  • Chili Powder: The backbone of our fajita seasoning. It brings warmth and a smoky depth. I sometimes add a tiny bit more than the recipe calls for, because I love that extra kick.
  • Cumin: Earthy, warm, and absolutely non-negotiable for fajitas. It's that distinct smell that just screams "Tex-Mex night!" When I smell cumin hitting a hot pan, I know good things are coming.
  • Smoked Paprika: Adds a lovely smokiness and a beautiful reddish hue to the seasoning. I discovered smoked paprika a few years back, and it changed my fajita game entirely.
  • Garlic Powder & onion Powder: These two are my secret weapon for consistent flavor. They distribute so much better than fresh garlic or onion in a dry rub, I find.
  • Dried Oregano: A touch of herbaceousness that rounds out the spice blend. I always make sure it's dried Mexican oregano if I can find it, it has a more vibrant, authentic flavor.
  • Cayenne Pepper (Optional): For those who like a little heat, like me! Start with a pinch, you can always add more. I once added too much and my husband cried happy, spicy tears.
  • Salt & Freshly Ground Black Pepper: Basic, but crucial for enhancing all those beautiful flavors. Don't forget to season generously, it truly makes a difference.
  • Avocado: Creamy, cool, and a fantastic healthy fat addition to your Low Carb Steak Fajita Bowl. I always slice up a whole one, because who can resist?
  • Fresh Cilantro: Bright, fresh, and totally optional if you're one of "those" people (you know who you are!). For me, it adds a burst of freshness that cuts through the richness.
  • Lime Wedges: A squeeze of fresh lime juice at the end is non-negotiable. It brightens everything up and makes all the flavors sing, honestly.
  • Sour Cream or Plain Greek Yogurt: For that cooling, tangy contrast. I usually opt for Greek yogurt for a lighter touch, but traditional sour cream is always a classic.
  • Sugar-Free Salsa: A spoonful or two adds extra moisture and a tangy kick. I always have a jar in the fridge for moments like these.

Crafting Your Low Carb Steak Fajita Bowl

Prep Your Steak & Veggies:
First things first, get your steak ready! Pat that flank steak super dry with paper towels this is critical for a good sear, trust me, I learned that the hard way. Slice it against the grain into thin strips, about ¼-inch thick. Next, tackle those beautiful bell peppers and onion. Slice them into thin strips too. I always try to get them uniform so they cook evenly, but honestly, sometimes my knife skills are a bit... rustic. Don't stress too much, it'll still taste amazing!
Whip Up the Fajita Seasoning:
In a small bowl, whisk together your chili powder, cumin, smoked paprika, garlic powder, onion powder, dried oregano, cayenne pepper (if you're feeling spicy!), salt, and black pepper. Give it a good mix until everything is combined. This blend is where all the magic happens, the aroma alone makes my kitchen smell incredible. I remember one time I accidentally grabbed cinnamon instead of cumin oops! The fajitas were... interesting, to say the least.
Marinate the Steak:
Toss the sliced steak with 1 tablespoon of olive oil and about two-thirds of your homemade fajita seasoning. Really get in there with your hands and make sure every strip is coated. You can let this sit for at least 15 minutes at room temperature, or even better, pop it in the fridge for up to an hour if you have the time. I've done both, and even a quick marinade makes a difference in flavor, honestly.
Sauté the Veggies:
Heat 1 tablespoon of olive oil in a large cast-iron skillet or heavy-bottomed pan over medium-high heat. Once it’s shimmering, add your sliced bell peppers and onion. Sauté them for 5-7 minutes, stirring occasionally, until they're tender-crisp and starting to get those lovely char marks. This is where I sometimes get impatient and try to rush it, but letting them caramelize a bit truly enhances their sweetness. Set them aside on a plate.
Cook the Steak for Your Low Carb Steak Fajita Bowl:
Add the remaining 1 tablespoon of olive oil to the same hot skillet. Increase the heat to high. Once it’s smoking slightly, add the seasoned steak in a single layer. Don't overcrowd the pan you might need to do this in two batches. Sear the steak for 1-2 minutes per side, until it's beautifully browned and cooked to your liking. I like mine medium-rare, still a little pink in the middle, so I watch it carefully. Overcooked steak is a tragedy, my friends!
Assemble Your Low Carb Steak Fajita Bowl:
Return the cooked veggies to the skillet with the steak. Give it a quick toss to combine everything and let those flavors mingle for just another minute. Now, grab your bowls! Divide the steak and veggie mixture among them. Top generously with sliced avocado, fresh cilantro, a squeeze of lime juice, a dollop of sour cream or Greek yogurt, and a spoonful of sugar-free salsa. It's a vibrant, delicious explosion of flavor and texture, and honestly, seeing it all come together is just so satisfying!

There’s something so incredibly satisfying about the sizzle of the steak hitting the hot pan, and then the aroma of those spices filling the kitchen. It always makes me feel like I’ve accomplished something truly delicious, even on the most hectic Tuesday evenings. Sometimes, I even put on some upbeat music and pretend I’m a chef in a bustling restaurant. My kids usually just roll their eyes, but hey, it makes cooking more fun!

Storage Tips for Your Low Carb Steak Fajita Bowl

Okay, so you've made a big batch of Low Carb Steak Fajita Bowl goodness, which is smart! Leftovers store beautifully, honestly. Just make sure to cool the steak and veggie mixture completely before transferring it to an airtight container. It'll keep well in the fridge for up to 3-4 days. I've microwaved it once, and while it's okay, the steak can get a little tough. My personal tip? Reheat it gently in a skillet over medium heat for a few minutes until warmed through it keeps the steak more tender and those veggies still have a bit of bite. The fresh toppings like avocado and cilantro are best added right before serving, though. Nobody wants brown avocado, right?

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Low Carb Steak Fajita Bowl: Ingredient Substitutions

Life happens, and sometimes you don't have exactly what the recipe calls for. Don't sweat it! For the steak, I've tried this once with boneless, skinless chicken thighs sliced thin, and it worked wonderfully just adjust cooking time. Skirt steak or sirloin would also be great. If you’re out of one color of bell pepper, no biggie, just use more of another. I've even added zucchini strips in a pinch, and it was... kinda good, added a different texture! For the seasoning, if you don't have all the individual spices, a good quality pre-made fajita seasoning (check for added sugar if you're keto!) can work. Just make sure to taste and adjust the salt. It’s all about making it work for your kitchen!

Serving Suggestions for Your Low Carb Steak Fajita Bowl

This Low Carb Steak Fajita Bowl is a meal in itself, but I love to round it out! For a truly satisfying experience, I often serve it with a side of cauliflower rice it soaks up all those delicious juices. Sometimes, if I'm feeling fancy, I'll whip up a quick batch of homemade guacamole. And honestly, this dish and a crisp, cold sparkling water with a lime wedge? Yes please! It’s also fantastic with some shredded lettuce for extra crunch, or even wrapped in a low-carb tortilla if you prefer a handheld version. It's versatile enough for a quiet night in or a casual dinner with friends, just add good company!

Cultural Backstory of the Low Carb Steak Fajita Bowl

Fajitas, as we know them today, actually have their roots in the Tex-Mex borderlands of Texas, often credited to Mexican ranch hands who would cook skirt steak over an open fire. "Fajita" literally means "little belt" or "girdle" in Spanish, referring to the cut of meat. I remember learning this and feeling such a connection to the resourceful cooks who created such a vibrant, flavorful dish from humble beginnings. This Low Carb Steak Fajita Bowl is my homage to that tradition, adapting it for my own dietary needs while trying to keep that authentic spirit alive. It’s a dish that tells a story of culinary fusion and innovation, and I love bringing a piece of that history into my kitchen.

Making this Low Carb Steak Fajita Bowl always feels like a little victory in my kitchen. It’s proof that eating healthy doesn’t mean sacrificing flavor or fun. The way the spices mingle, the tender steak, the crisp-tender veggies it’s just so good, and honestly, makes me feel happy every single time. I hope it brings as much joy (and maybe a little less kitchen chaos!) to your table. Let me know how your version turns out!

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Low Carb Steak Fajita Bowl: Frequently Asked Questions

→ Can I make this Low Carb Steak Fajita Bowl ahead of time?

You totally can! I often prep the steak and seasoning mix the night before, and chop the veggies. Then, when dinner time rolls around, it’s just a quick cook. The actual cooking part is best done fresh for the best texture, honestly.

→ What if I don't have flank steak for my Low Carb Steak Fajita Bowl?

No problem! I've used skirt steak, sirloin, or even chicken breast sliced thin. Just be mindful that cooking times might vary a bit. Chicken will cook faster, so watch it closely, you don't want it dry!

→ How do I get a good sear on my steak for this Low Carb Steak Fajita Bowl?

Heat is key! Make sure your pan is screaming hot before adding the steak. Also, don't overcrowd it cook in batches if you need to. That's how you get those beautiful caramelized edges, I learned that the hard way.

→ How long do Low Carb Steak Fajita Bowl leftovers last?

Cooked fajita mixture will keep well in an airtight container in the fridge for 3-4 days. Just remember to add fresh toppings when you serve it again. I once tried to save avocado slices with it, and trust me, it wasn't pretty.

→ Can I add other vegetables to my Low Carb Steak Fajita Bowl?

Absolutely! I've tossed in mushrooms, zucchini, or even asparagus spears. Just keep in mind their cooking times. Zucchini cooks pretty fast, so add it later with the bell peppers. Experimenting is half the fun!

Smoky Low Carb Steak Fajita Bowl: Quick Keto Dinner

Craving a flavorful Low Carb Steak Fajita Bowl? This easy keto dinner comes together fast, packed with tender steak, peppers, and bold spices.

4.3 out of 5
(82 reviews)
Prep Time
15 Minutes
Cook Time
20 Minutes
Total Time
35 Minutes

Category: Healthy & Light

Difficulty: Beginner

Cuisine: Tex-Mex

Yield: 4 Servings

Dietary: Keto, Low Carb, Gluten-Free

Published: Wed Feb 11 2026 at 01:51 PM

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Ingredients

→ For the Steak & Veggies

01 1 lb flank steak
02 1 red bell pepper, sliced
03 1 yellow bell pepper, sliced
04 1 green bell pepper, sliced
05 1 large yellow onion, sliced
06 3 tbsp olive oil, divided

→ Fajita Seasoning Blend

07 2 tsp chili powder
08 1.5 tsp ground cumin
09 1 tsp smoked paprika
10 1 tsp garlic powder
11 1 tsp onion powder
12 0.5 tsp dried oregano
13 0.25 tsp cayenne pepper (optional, for heat)
14 0.5 tsp salt, or to taste
15 0.25 tsp black pepper, or to taste

→ For Serving & Garnish

16 1 large avocado, sliced
17 Fresh cilantro, chopped
18 2 limes, cut into wedges
19 Sour cream or plain Greek yogurt (low carb)
20 Sugar-free salsa

Instructions

Step 01

First things first, get your steak ready! Pat that flank steak super dry with paper towels – this is critical for a good sear, trust me, I learned that the hard way. Slice it against the grain into thin strips, about ¼-inch thick. Next, tackle those beautiful bell peppers and onion. Slice them into thin strips too. I always try to get them uniform so they cook evenly, but honestly, sometimes my knife skills are a bit... rustic. Don't stress too much, it'll still taste amazing!

Step 02

In a small bowl, whisk together your chili powder, cumin, smoked paprika, garlic powder, onion powder, dried oregano, cayenne pepper (if you're feeling spicy!), salt, and black pepper. Give it a good mix until everything is combined. This blend is where all the magic happens, the aroma alone makes my kitchen smell incredible. I remember one time I accidentally grabbed cinnamon instead of cumin – oops! The fajitas were... interesting, to say the least.

Step 03

Toss the sliced steak with 1 tablespoon of olive oil and about two-thirds of your homemade fajita seasoning. Really get in there with your hands and make sure every strip is coated. You can let this sit for at least 15 minutes at room temperature, or even better, pop it in the fridge for up to an hour if you have the time. I've done both, and even a quick marinade makes a difference in flavor, honestly.

Step 04

Heat 1 tablespoon of olive oil in a large cast-iron skillet or heavy-bottomed pan over medium-high heat. Once it’s shimmering, add your sliced bell peppers and onion. Sauté them for 5-7 minutes, stirring occasionally, until they're tender-crisp and starting to get those lovely char marks. This is where I sometimes get impatient and try to rush it, but letting them caramelize a bit truly enhances their sweetness. Set them aside on a plate.

Step 05

Add the remaining 1 tablespoon of olive oil to the same hot skillet. Increase the heat to high. Once it’s smoking slightly, add the seasoned steak in a single layer. Don't overcrowd the pan – you might need to do this in two batches. Sear the steak for 1-2 minutes per side, until it's beautifully browned and cooked to your liking. I like mine medium-rare, still a little pink in the middle, so I watch it carefully. Overcooked steak is a tragedy, my friends!

Step 06

Return the cooked veggies to the skillet with the steak. Give it a quick toss to combine everything and let those flavors mingle for just another minute. Now, grab your bowls! Divide the steak and veggie mixture among them. Top generously with sliced avocado, fresh cilantro, a squeeze of lime juice, a dollop of sour cream or Greek yogurt, and a spoonful of sugar-free salsa. It's a vibrant, delicious explosion of flavor and texture, and honestly, seeing it all come together is just so satisfying!

Notes

  1. Always pat your steak dry before seasoning and searing. This is *the* trick for a beautiful crust, trust me.
  2. Leftover fajita mixture stores beautifully in an airtight container for 3-4 days, reheat gently in a skillet.
  3. If you don't have flank steak, boneless, skinless chicken thighs sliced thin work wonderfully as a substitute.
  4. A fresh squeeze of lime juice at the end brightens every single flavor in your Low Carb Steak Fajita Bowl. It’s a game-changer.

Tools You'll Need

  • Large cast-iron skillet or heavy-bottomed pan
  • cutting board
  • sharp knife
  • small mixing bowl
  • whisk
  • tongs

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • None (check specific ingredients for hidden allergens)

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 450
  • Total Fat: 30g
  • Total Carbohydrate: 10g
  • Protein: 35g

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