Meal PrepSheet-Pan Chicken Fajitas
One pan, one cutting board, four servings of meal-prepped protein heaven.
Prep
10m
Cook
25m
Total
35m
Servings
4
kcal
425
Protein
42g
Carbs
32g
Fat
14g
Macros per serving
Allergen info
Contains: Gluten, Dairy.
Auto-detected from the ingredient list. Always double-check labels on packaged items (e.g. protein powders, sauces, breads), many are produced in facilities that also handle nuts, soy, milk, wheat or eggs. If you have a severe allergy, do not rely on this list alone.
Overview
Why it works
The single best meal-prep recipe in the library. Slice, season, roast - four servings of fajita filling that pivot into burritos, bowls, salads or lettuce wraps all week.
- Chicken thigh stays juicy after reheating - far more forgiving than breast for meal prep.
- High-heat roasting caramelizes the peppers and onions for restaurant-grade flavor.
- Built-in macro flexibility - you control the carb (rice, tortilla, lettuce, none).
Ingredients
Ingredients · 4 servings
Sheet pan
- 700 g boneless skinless chicken thighs, sliced
- 2 red bell peppers, sliced
- 2 green bell peppers, sliced
- 1 yellow bell pepper, sliced
- 1 large red onion, sliced
Seasoning
- 2 tbsp olive oil
- 1 tbsp smoked paprika
- 2 tsp cumin
- 1 tsp chili powder
- 1 tsp garlic powder
- 1 tsp onion powder
- 1 tsp salt
- Juice of 1 lime
To serve (your choice)
- Whole-wheat tortillas, rice, or lettuce cups
- Greek yogurt or sour cream
- Salsa, avocado, fresh cilantro
Instructions
Step by step
- 1
Preheat your oven to 230 °C / 450 °F and line one or two large sheet pans with parchment paper.
- 2
In a large bowl, combine the sliced chicken thighs, bell peppers and red onion.
- 3
Drizzle the olive oil over everything, then add the smoked paprika, cumin, chili powder, garlic powder, onion powder and salt; toss until every piece is evenly coated.
- 4
Spread the chicken and vegetables across the sheet pan or pans in a single layer without piling them on top of each other; crowding causes steaming instead of roasting.
- 5
Roast for 20 minutes, then stir everything with a spatula to expose new surfaces to the heat.
- 6
Return to the oven for another 5 minutes until the chicken reads 74 °C / 165 °F internally and the vegetable edges have dark, caramelized char.
- 7
Squeeze the lime juice over the hot pan as soon as it comes out of the oven.
- 8
Serve immediately in tortillas, rice bowls or lettuce cups with Greek yogurt, salsa, avocado and cilantro, or portion into four meal-prep containers for the week.
Pro Tips
Coach-level details
- Use two sheet pans if it looks crowded - overcrowding steams instead of roasts.
- Save pan juices and pour over your reheated portions during the week.
- Try the broiler for the last 2 minutes for a stronger char.
Storage & Swaps
Keep it, swap it, save it
Storage
- 4 days refrigerated.
- Reheats best in a skillet, 4 minutes covered, then 1 minute uncovered.
- Label containers with the prep date.
Smart swaps
- Swap chicken thigh for breast (reduce cook time 5 min), shrimp, or extra-firm tofu.
- Add 1 tsp chipotle in adobo for smoky heat.
- Mexican rice base for cutting macros, cauliflower rice for low-carb week.
Pair with a program
Eating right is half the result.
Plug this recipe into an Onyx program for the other half - periodized training that actually moves the needle.
