When you want all the bold, sizzling flavors of classic chicken fajitas but crave the ease of a one-dish dinner, this Chicken Fajita Casserole is your new go-to recipe!
Packed with juicy chicken, tender-crisp bell peppers, onions, and loads of gooey melted cheese, this casserole is a low-effort, high-reward meal that’s ready in about 30 minutes. It’s perfect for busy weeknights, family gatherings, or meal prep for the week ahead.
Imagine the deliciousness of fajitas fresh off the skillet — smoky, savory, and just the right amount of spice — but baked into a creamy, cheesy masterpiece you can scoop right onto your plate. Bonus: it’s naturally low in carbs, customizable, and absolutely irresistible!
Ingredients (Measured in Grams)
For the Casserole:
- 600g boneless, skinless chicken breasts (or thighs), cut into thin strips
- 3 assorted bell peppers (about 450g total), sliced thin (red, yellow, green)
- 150g red onion, thinly sliced
- 200g shredded cheddar cheese
- 100g shredded mozzarella cheese
- 100g cream cheese, softened
- 30g olive oil
- 10g lime juice (juice of 1 lime)
- 10g fajita seasoning (or homemade – see below)
- 5g garlic powder
- 5g smoked paprika
- 5g cumin powder
- 2g black pepper
- 5g salt
Optional Toppings:
- Fresh cilantro, chopped
- Diced avocado
- Sour cream
- Salsa
- Jalapeños
Instructions
1. Preheat the Oven
- Preheat your oven to 200°C (400°F).
2. Season the Chicken
- In a large mixing bowl, toss the chicken strips with olive oil, lime juice, fajita seasoning, garlic powder, smoked paprika, cumin, salt, and black pepper.
- Let it marinate for 5–10 minutes while you prep the veggies.
3. Prepare the Vegetables
- Slice your bell peppers and onions thinly.
4. Assemble the Casserole
- Lightly grease a 9×13-inch (23x33cm) casserole dish.
- Spread the seasoned chicken evenly across the bottom.
- Scatter the sliced peppers and onions over the chicken.
- Dot the casserole with small spoonfuls of cream cheese.
- Sprinkle the cheddar and mozzarella evenly over the top.
5. Bake
- Bake uncovered for 20–25 minutes, or until the chicken is cooked through (internal temperature should be 74°C/165°F) and the cheese is bubbly and golden.
6. Garnish and Serve
- Garnish with chopped cilantro, avocado slices, or sour cream if desired.
- Serve hot and enjoy!
Nutrition Facts (Per Serving – Serves 6)
- Calories: ~420 kcal
- Protein: 36g
- Carbohydrates: 8g
- Fat: 28g
- Saturated Fat: 13g
- Fiber: 2g
- Sugar: 3g
- Sodium: 690mg
(Nutrition may vary slightly based on toppings and cheese brand.)
Tips and Tricks for the Best Chicken Fajita Casserole ????
- Use a fajita seasoning mix: Homemade or store-bought works great! Customize the spice level to your taste.
- Thinner chicken strips: Slice chicken thinly for faster, even baking.
- Mix up the cheeses: Add pepper jack or Monterey jack for extra spice and creaminess.
- Meal prep hero: This casserole reheats beautifully — perfect for leftovers!
- Add rice or cauliflower rice: Layer it under the chicken for a heartier meal.
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Flavor Variations
- Tex-Mex Twist: Add black beans and corn for a Tex-Mex style casserole.
- Low-Carb Swap: Substitute cauliflower rice for a keto-friendly option.
- Extra Creamy: Stir in a few tablespoons of sour cream or heavy cream before baking.
Why You’ll Love This Recipe
- One-dish meal: Minimal cleanup, maximum flavor.
- Customizable: Adjust spice levels and toppings based on your preferences.
- Family-approved: Even picky eaters love the cheesy, melty goodness.
- Great for gatherings: Perfect for potlucks, family dinners, or casual parties.
This Chicken Fajita Casserole is proof that you don’t need a lot of effort to create a bold, restaurant-quality meal at home. Every bite is loaded with melty cheese, juicy chicken, and perfectly seasoned veggies — the ultimate comfort food with a southwestern twist!
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