🌮🔥 Fajita Chicken Casserole (Easy, Cheesy & Family-Favorite!)
If you’re craving bold Tex-Mex flavors without standing over the stove, this Fajita Chicken Casserole is about to become your new go-to dinner. Juicy seasoned chicken, colorful bell peppers, onions, and gooey melted cheese all baked together in one comforting dish — it’s everything you love about chicken fajitas, made easy, cozy, and oven-baked.
This recipe is perfect for busy weeknights, meal prep, or when you want a crowd-pleasing dish that gets everyone asking for seconds. Best of all? It’s simple, customizable, and incredibly satisfying.
🌶️ Why Everyone Loves This Fajita Chicken Casserole
✔️ One-pan comfort food
✔️ Packed with flavor, not complicated steps
✔️ Budget-friendly ingredients
✔️ Perfect for leftovers (tastes even better the next day!)
✔️ Naturally gluten-free & low-carb friendly
This is the kind of recipe that gets saved, shared, and made again and again.
🧀 Ingredients You’ll Need
Boneless, skinless chicken breasts (or thighs)
Bell peppers (red, green, yellow – the more color, the better!)
Onion, sliced
Fajita seasoning (store-bought or homemade)
Olive oil
Shredded cheese (cheddar, Mexican blend, or Monterey Jack)
Optional add-ins:
Cream cheese or sour cream (for extra creaminess)
Cooked rice or cauliflower rice
Black beans or corn
👩🍳 How to Make Fajita Chicken Casserole
1️⃣ Preheat your oven and lightly grease a baking dish.
2️⃣ Slice the chicken, peppers, and onions into thin strips.
3️⃣ Toss everything with olive oil and fajita seasoning until well coated.
4️⃣ Spread evenly in the casserole dish.
5️⃣ Bake until the chicken is tender and juicy.
6️⃣ Sprinkle generously with cheese and return to the oven until melted and bubbly.
7️⃣ Serve hot and enjoy that irresistible fajita aroma!
🌮 Serving Ideas
Serve as-is for a low-carb dinner
Spoon into tortillas or lettuce wraps
Top with sour cream, guacamole, or salsa
Pair with Mexican rice or a fresh salad
💡 Pro Tips for Best Results
✨ Don’t overcrowd the pan — it helps everything roast instead of steam
✨ Use chicken thighs for extra juiciness
✨ Let it rest a few minutes before serving to lock in flavor
✨ Double the recipe — it disappears fast!
❤️ Final Thoughts
This Fajita Chicken Casserole is warm, cheesy, colorful, and bursting with Tex-Mex flavor. It’s the kind of meal that brings everyone to the table and keeps them coming back for more. Simple ingredients, big flavor, and minimal cleanup — what more could you ask for?
👇 If this recipe made you hungry, drop a “🌮 yummy!” in the comments and don’t forget to SAVE it for later!
