Fajita Chicken Casserole – A Flavor-Packed, Easy Weeknight Dinner
This Fajita Chicken Casserole combines all the bold, sizzling flavors of fajitas into one cheesy, oven-baked dish. Juicy chicken, crisp-tender peppers, and zesty fajita seasoning make it a family-friendly recipe that’s both simple and satisfying.
📋 Recipe Card
Servings: 6
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes
Dietary: Gluten-Free • Low-Carb
✅ Ingredients
- Boneless, skinless chicken breasts, cut into bite-sized pieces
- Fajita seasoning mix (1 packet or homemade)
- Olive oil
- Red bell pepper, thinly sliced
- Green bell pepper, thinly sliced
- Yellow bell pepper, thinly sliced
- Shredded Mexican cheese blend
- Onion, thinly sliced
- Fresh cilantro (for garnish, optional)
👩🍳 Instructions
- Preheat Oven: Set to 375°F (190°C). Grease a 9×13-inch baking dish.
- Season Chicken: Toss chicken pieces with fajita seasoning and olive oil until well coated.
- Assemble Casserole: Spread seasoned chicken evenly in the dish. Top with sliced peppers and onions.
- Bake: Cook uncovered for 20–25 minutes, until chicken is fully cooked and veggies are tender.
- Add Cheese: Sprinkle shredded cheese on top, then bake an additional 5 minutes until melted and bubbly.
- Serve & Enjoy: Garnish with cilantro if desired. Serve hot with rice, tortillas, or salad.
💡 Quick Notes
- Slice veggies evenly so they cook uniformly.
- Use a meat thermometer — chicken is done at 165°F (74°C).
- Great for meal prep: portion into containers for quick lunches.
🌟 Introduction
This Fajita Chicken Casserole takes everything you love about sizzling fajitas — smoky seasoning, tender chicken, and colorful bell peppers — and turns it into a creamy, cheesy baked dish. It’s quick enough for a weeknight, yet flavorful enough to impress guests.