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Healthy Chicken Fajitas: 35g Protein Dinner

By Jordan Bell on March 14, 2026

Close-up of healthy chicken fajitas with colorful bell peppers, avocado slices, and a dollop of sour cream.

You know those nights when you’re starving, staring into the fridge, and desperately need something *good* but also *fast*? That’s exactly when my Healthy Chicken Fajitas Easy High Protein Dinner comes to the rescue! I remember the first time I whipped these up – it was a Wednesday, I’d just gotten home late from work, and the thought of a complicated meal made me want to order takeout. But then I looked at my ingredients and thought, ‘I can totally do this!’ Within 30 minutes, my kitchen smelled amazing, and I had a plate piled high with juicy chicken, colorful peppers, and all the fixings. It was a total game-changer, and it’s become my go-to for a quick, satisfying dinner that doesn’t leave me feeling weighed down. Plus, these are fantastic for meal prep, just like these healthy chicken meal prep bowls I make! Seriously, this recipe is a keeper, and it’s packed with protein to keep you full!

Why You’ll Love This Healthy Chicken Fajitas Easy High Protein Dinner

  • Super Speedy! Seriously, this whole meal comes together in under 30 minutes, making it perfect for those crazy weeknights.
  • Packed with Protein: With a whopping 35g of protein per serving, these fajitas will keep you full and satisfied for hours.
  • Flavor Explosion: The blend of spices, tender chicken, and perfectly cooked veggies is just *chef’s kiss*.
  • Healthy & Delicious: You get all that great taste without the guilt! It’s loaded with colorful veggies and lean protein.
  • So Versatile: Don’t be afraid to swap in your favorite veggies or adjust the spice level to your liking.
  • Easy Cleanup: Mostly a one-skillet wonder, which means less time scrubbing and more time enjoying your meal.

Ingredients for Your Healthy Chicken Fajitas Easy High Protein Dinner

Alright, for these amazing fajitas, you’ll want to have everything prepped and ready to go before you even start cooking. It makes the whole process so much smoother! I always grab some colorful bell peppers because they just look so pretty and add that little bit of sweetness. And don’t forget the lime – it’s like magic for bringing all these flavors together. If you’re looking for other healthy dressing ideas, check out these healthy homemade vinaigrette recipes too!

  • 1 pound boneless, skinless chicken fillets, sliced into thin strips
  • 2 tablespoons olive oil (for the marinade)
  • 1 teaspoon smoked paprika
  • 1 teaspoon ground cumin
  • 1 teaspoon chili powder
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon onion powder
  • Salt and black pepper, to taste (I’m pretty generous with these!)
  • Juice of 1 lime (essential for that zing!)
  • 1 large red bell pepper, thinly sliced
  • 1 large green bell pepper, thinly sliced
  • 1 large yellow bell pepper, thinly sliced
  • 1 medium yellow onion, thinly sliced
  • 1 tablespoon olive oil (for sautéing veggies)
  • 8 small corn or flour tortillas (warm them up right before serving!)
  • 1 avocado, sliced (adds the perfect creamy texture)
  • 1/2 cup plain Greek yogurt (a healthier swap for sour cream!)
  • Fresh lime wedges, for serving
  • 2 tablespoons chopped fresh cilantro, for that fresh pop

Step-by-Step Instructions for Easy High Protein Dinner Fajitas

Okay, let’s get cooking! This part is honestly the most fun because you start to smell all those amazing spices. It’s really not complicated at all. My biggest tip here is to have everything chopped and ready before you turn on the stove. It makes cooking so much smoother, trust me.

Step 1: First, take your thinly sliced chicken and pop it into a bowl. Add in the 2 tablespoons of olive oil, your smoked paprika, cumin, chili powder, garlic powder, onion powder, a good pinch of salt and pepper, and that fresh lime juice. Give it all a really good toss so every piece of chicken is coated in that gorgeous spice mix. Let it hang out and marinate for at least 10 minutes, or up to 20 if you have time. This is where the flavor really starts to build! For more ideas on high-protein dinners, check out these high-protein chicken dinner recipes.

Step 2: Now, get a nice big skillet, or even a cast iron pan if you have one, and heat it over medium-high heat. You want it to be nice and hot! Add just a little bit more oil – you don’t need much. Carefully spread the marinated chicken in a single layer. Seriously, don’t crowd the pan! If you have too much chicken, it’ll steam instead of sear, and we want that beautiful crust. Cook it for about 2 to 3 minutes without touching it, then flip and cook for another 2 to 3 minutes until it’s totally cooked through. Once it’s done, scoop it out and set it aside. You can totally cook it in batches if your pan isn’t huge – it’s worth the extra minute!

Close-up of healthy chicken fajitas filled with seasoned chicken, colorful bell peppers, avocado, and a dollop of sour cream.

Step 3: In that same skillet (less washing up, woohoo!), add the remaining 1 tablespoon of olive oil. Toss in those sliced bell peppers and the onion. Stir them around every so often, and let them cook for about 5 to 7 minutes. You want them to get a little tender but still have a nice bit of crispness, and maybe even a few little charred bits – that’s where the flavor is!

Close-up of three Healthy Chicken Fajitas filled with seasoned chicken, colorful bell peppers, avocado, and a dollop of sour cream.

Step 4: Now, bring your beautifully seared chicken back into the skillet with the veggies. Give it all a good stir to combine everything. Let it cook for just another minute or two, until the chicken is heated all the way through and everything is mixed together nicely. It’s going to smell incredible at this point!

Three healthy chicken fajitas filled with seasoned chicken, bell peppers, onions, avocado, and a dollop of sour cream.

Step 5: While everything is finishing up, quickly warm your tortillas. I usually just do this in a dry pan for about 30 seconds on each side, or you can pop them in the oven for a few minutes. You want them soft and pliable. Serve up your chicken and veggie mixture in those warm tortillas, and then top them with your sliced avocado, a dollop of Greek yogurt (it’s so much lighter than sour cream!), fresh cilantro, and an extra squeeze of lime. It’s also a great way to use up leftover chicken, kind of like these healthy air fryer chicken recipes I love!

Three Healthy Chicken Fajitas filled with grilled chicken, colorful bell peppers, avocado slices, and a dollop of sour cream.

Serving Suggestions for Your Healthy Chicken Fajitas

These fajitas are pretty darn perfect on their own, but if you want to take them over the top, here are a few ideas! I love adding things that give that extra burst of freshness or a different texture. I always have some avocado salads or some extra salsa on hand!

Extra Avocado Slices: Because, let’s be real, can you ever have too much avocado? It adds that creamy, dreamy goodness that just makes everything better.

Simple Guacamole: If you’re feeling a little fancy, a quick homemade guacamole is never a bad idea. It’s packed with healthy fats and so easy to whip up!

A Dollop of Greek Yogurt or Tzatziki: Instead of sour cream, I love a spoonful of plain Greek yogurt or even some tzatziki sauce. It’s lighter, tangy, and tastes amazing.

Fresh Salsa or Pico de Gallo: A little bit of fresh, chunky salsa adds a nice bright, acidic kick that cuts through everything perfectly.

Storing and Reheating Your High Protein Dinner

So, you’ve got some delicious fajita leftovers? Lucky you! The best way to store these is to keep the cooked chicken and veggie mixture in one airtight container in the fridge. If you have any extra toppings like avocado or Greek yogurt, keep those separate in smaller containers so they don’t get mushy. Everything should last in the fridge for about 3 to 4 days. For a totally satisfying meal prep situation, I love making a big batch on Sunday, just like these healthy meal prep bowl recipes! These are also great for grabbing on the go, similar to these easy high protein meal prep ideas. When you’re ready to reheat, just pop the chicken and veggie mix into a skillet over medium heat for a few minutes until it’s sizzling, or microwave it for about 90 seconds to 2 minutes, stirring halfway through. Warm up your tortillas separately, of course!

Frequently Asked Questions About Healthy Chicken Fajitas

Got questions about whipping up these delicious chicken fajitas? I’ve got you covered!

Can I use different vegetables in my fajitas?

Absolutely! Feel free to get creative. Zucchini, mushrooms, or even chunks of sweet potato would be delicious additions. Just make sure to cut them to a similar size so they cook evenly with the onions and peppers. It’s all about making it your own!

How can I make these fajitas spicier?

If you love a little heat, you’ve got options! Add a pinch (or more!) of cayenne pepper to the chicken marinade, or toss in some sliced jalapeños with the bell peppers and onions when you’re cooking the veggies. A dash of hot sauce at the end never hurt anyone either!

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Three delicious Healthy Chicken Fajitas filled with grilled chicken, colorful bell peppers, onions, avocado, and a dollop of sour cream.

Healthy Chicken Fajitas


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  • Author: Jordan Bell
  • Total Time: 25 minutes
  • Yield: 4 servings 1x
  • Diet: Low Fat

Description

Juicy, high protein chicken fajitas packed with peppers and onions. A quick and easy dinner ready in under 30 minutes.


Ingredients

Scale
  • 1 pound boneless skinless chicken fillets sliced into thin strips
  • 2 tablespoons olive oil
  • 1 teaspoon smoked paprika
  • 1 teaspoon ground cumin
  • 1 teaspoon chili powder
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon onion powder
  • Salt and black pepper to taste
  • Juice of 1 lime
  • 1 large red bell pepper thinly sliced
  • 1 large green bell pepper thinly sliced
  • 1 large yellow bell pepper thinly sliced
  • 1 medium yellow onion thinly sliced
  • 1 tablespoon olive oil
  • 8 small corn or flour tortillas warmed
  • 1 avocado sliced
  • 1/2 cup plain Greek yogurt
  • Fresh lime wedges
  • 2 tablespoons chopped fresh cilantro

Instructions

  1. Slice chicken into thin even strips and place in a bowl.
  2. Add olive oil, paprika, cumin, chili powder, garlic powder, onion powder, salt, pepper, and lime juice. Toss well and let marinate for 10 to 20 minutes.
  3. Heat a large skillet over medium-high heat until hot. Add a small amount of oil and spread chicken in a single layer. Cook for 2 to 3 minutes without moving until seared. Flip and cook another 2 to 3 minutes until fully cooked. Remove and set aside.
  4. Add olive oil to the same skillet. Add sliced peppers and onion. Cook for 5 to 7 minutes, stirring occasionally, until slightly softened and lightly charred.
  5. Return chicken to the skillet and toss with vegetables. Cook for 1 to 2 minutes until heated through and well combined.
  6. Warm tortillas in a dry pan or oven until soft.
  7. Serve chicken and vegetables in tortillas topped with avocado, Greek yogurt, cilantro, and a squeeze of fresh lime.
  8. Ensure chicken reaches an internal temperature of 165°F before serving.

Notes

  • Cook chicken in batches if needed to avoid overcrowding.
  • High heat is key for a good sear and maximum flavor.
  • Prep Time: 10 minutes
  • Cook Time: 15 minutes
  • Category: Dinner
  • Method: Searing
  • Cuisine: Mexican-inspired

Nutrition

  • Serving Size: 1 serving
  • Calories: 360
  • Sugar: 0
  • Sodium: 0
  • Fat: 14g
  • Saturated Fat: 0g
  • Unsaturated Fat: 0g
  • Trans Fat: 0g
  • Carbohydrates: 26g
  • Fiber: 0g
  • Protein: 35g
  • Cholesterol: 0mg

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