Chicken Fajitas Sheet Pan Recipe

Want a quick, high-protein meal with minimal cleanup? Then this Sheet Pan Chicken Fajitas Recipe is for you, just slice, season, and bake—dinner is served. Perfect for busy weeknights or meal prepping for the week.

Not only are these fajitas a delicious dinner option, but they’re also a key ingredient in my favorite Fajita Protein Bowls. With tender chicken, vibrant bell peppers, and onions, this sheet pan recipe is packed with protein and bold flavors. The best part? You can simply add everything to a sheet pan, toss it with spices, and bake, no fuss, no mess. Whether you’re meal-prepping for the week or looking for a quick weeknight dinner, these fajitas are the perfect choice.

Why You’ll Love This Recipe

Protein-Packed: With lean chicken breasts and a variety of veggies, it’s a filling, muscle-nourishing dish.

Minimal Cleanup: Everything cooks on one sheet pan, so there’s less mess to handle.

Quick & Easy – Ready in under 30 minutes.

What You’ll Need for this Sheet Pan Chicken Fajitas

Chicken Breasts: Lean and packed with protein, but you can also use chicken thighs for a juicier result. If using thighs, adjust the cooking time slightly.

Bell Peppers: Any color works! Red, yellow, and orange are sweeter, while green is more earthy. Mix for a colorful, vibrant dish.

Red Onion: Adds a slight sweetness. Yellow or white onions can work as substitutes, but red offer the best pop of color.

Olive Oil: Helps the seasoning stick and adds healthy fats. Avocado oil is a great alternative.

Seasonings: Adjust the spice level to your preference. Add cayenne pepper for extra heat or smoked paprika for a deeper, smoky flavor.

Lime: Fresh lime juice brightens the dish. If you don’t have fresh limes, bottled lime juice works fine.

Guacamole: Offers creamy, healthy fats. You can make it fresh or use store-bought for convenience.

Tomato Salsa: Adds a tangy, zesty element.

Substitutions and Variations

Protein: For a vegetarian option, use firm tofu or portobello mushrooms instead of chicken.

Seasoning: Use fajita seasoning or taco seasoning if you have them on hand.

Heat: If you like it spicier, toss in crushed red pepper flakes or a dash of hot sauce.

How to make this Sheet Pan Chicken Fajitas Recipe

1. Preheat and Prepare

Preheat your oven to 400°F (200°C) and grease a large sheet pan with a bit of olive oil or line it with parchment paper for easy cleanup. Preheating the oven helps everything cook evenly, giving you perfectly tender chicken and slightly charred vegetables.

2. Season Generously

Place the sliced chicken, bell peppers, and onion directly onto the greased sheet pan. Drizzle the olive oil over everything, then sprinkle the paprika, cumin, chili powder, garlic powder, black pepper, and salt evenly over the top. Toss everything together on the pan until all ingredients are well coated in oil and spices.

3. Spread and Bake

Spread the seasoned chicken and vegetables out in a single layer on the sheet pan. This helps the ingredients roast rather than steam, ensuring a delicious, slightly charred finish. Bake for 18-20 minutes, flipping halfway through for even cooking. If you like a bit of smoky char, switch to the broiler for the last 2-3 minutes, keeping a close eye to prevent burning.

5. Garnish and Serve

Once out of the oven, squeeze fresh lime juice over the hot fajitas for a burst of brightness and garnish with chopped cilantro. Serve with warm tortillas, guacamole, and salsa. These fajitas also pair well with rice, and I use them to make these amazing fajita protein bowls.

Macros & Nutrition Breakdown Per Serving

Note: These macros are based on the exact ingredient amounts listed above and a serving size of about 1/4th of the recipe.

Calories: 223 kcal

Protein:21g

Carbohydrates: 13g

Fat: 11g

Fiber: 3g

Meal Prep & Storage Tips

Meal Prep Tips: These Sheet Pan Chicken Fajitas are an ideal option for meal prep because they store well and stay flavorful throughout the week. To make meal prepping easier, cook the chicken, peppers, and onions in advance, then portion them into individual servings. For best results, keep the fajitas and any garnishes (like cilantro and lime) separate until ready to eat. You can store the fajitas in an airtight container and warm them up as needed. Serve with fresh tortillas, guacamole, or salsa when you’re ready for a delicious meal.

Storage Tips: Once prepared, store the Sheet Pan Chicken Fajitas in an airtight container in the refrigerator for up to 4 days. Keep any additional toppings, like salsa, guacamole, or tortillas, in separate containers to maintain freshness. If you’ve made a larger batch and want to freeze some for later, the fajitas can be stored in freezer-safe bags or containers for up to 3 months. When reheating, simply warm them in the oven or microwave, and if needed, squeeze some fresh lime juice on top to bring back that zesty flavor.

When you’re ready to eat, just give it a quick toss and adjust the seasoning if needed before serving.

More High-Protein Recipes You’ll Love

Bacon Green Beans

High-Protein Fried Rice

High-Protein BLT Pasta Salad

If you enjoyed this recipe, give it a try and let me know what you think! Share your photos on social media and tag me so I can see your delicious variations. Don’t forget to leave a comment below if you have any questions, feedback, or favorite ingredient swaps!