Fajita Chicken Casserole

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Fajita Chicken Casserole is one of those feel-good dinners I can’t wait to share with you—thank you, truly, for always trusting me with your family meals. Right after this H1, let me say it clearly: Fajita Chicken Casserole is bold, cheesy, colorful, and packed with that sizzling fajita flavor we all love, but made easy in cozy casserole form. I promised you versatile, flavorful dinners that don’t require standing over the stove… and this one absolutely delivers.

Fajita Chicken Casserole Recipe Overview

This Fajita Chicken Casserole takes everything you love about chicken fajitas—tender chicken, peppers, onions, warm spices, and melty cheese—and bakes it into one comforting, scoopable dish. It’s perfect for busy weeknights, meal prep, or feeding a hungry family with minimal cleanup.

Reasons You’ll Love Fajita Chicken Casserole

  • Big fajita flavor with simple ingredients
  • One-dish meal = less cleanup
  • Customizable for picky eaters
  • Great for leftovers and meal prep
  • Naturally colorful and inviting

What Does Fajita Chicken Casserole Taste Like?

This casserole is savory, slightly smoky, and perfectly seasoned. The chicken stays juicy, the peppers and onions soften beautifully, and the cheese melts into every bite. It’s bold without being overpowering—comfort food with a Tex-Mex twist.

Benefits of This Recipe

  • Protein-packed and filling
  • Easy way to use leftover or rotisserie chicken
  • Works with fresh or frozen vegetables
  • Can be made mild or spicy

Ingredients for Fajita Chicken Casserole

  • 2½ cups cooked chicken, diced or shredded
  • 1 tablespoon olive oil
  • 1 red bell pepper, sliced
  • 1 green bell pepper, sliced
  • 1 yellow bell pepper, sliced
  • 1 small onion, sliced
  • 1 packet fajita seasoning (or homemade)
  • 1 cup cooked rice (white or brown)
  • ½ cup sour cream
  • ½ cup cream cheese, softened
  • 1½ cups shredded Mexican-blend cheese
  • Salt and pepper, to taste

Tools You’ll Need

  • Large skillet
  • 9×13-inch baking dish
  • Mixing bowl
  • Measuring cups and spoons
  • Wooden spoon or spatula

Ingredient Additions and Substitutions

  • Low-carb option: Skip the rice
  • Veggie boost: Add corn, black beans, or zucchini
  • Cheese swap: Cheddar, Monterey Jack, or pepper jack
  • Protein: Works great with rotisserie chicken or leftover grilled chicken

How to Make Fajita Chicken Casserole Step by Step

  1. Preheat oven to 375°F (190°C) and grease a baking dish.
  2. Heat olive oil in a skillet over medium heat.
  3. Sauté bell peppers and onion until softened, about 5–7 minutes.
  4. Season vegetables with fajita seasoning, salt, and pepper.
  5. In a mixing bowl, combine sour cream and cream cheese until smooth.
  6. Stir in cooked chicken and rice.
  7. Add sautéed vegetables and mix well.
  8. Fold in 1 cup of shredded cheese.
  9. Spread mixture evenly into prepared baking dish.
  10. Top with remaining cheese.
  11. Bake uncovered for 25–30 minutes, until bubbly and lightly golden.
  12. Let rest for 5 minutes before serving.

The smell while this bakes? Warm, cheesy fajita heaven—absolutely irresistible!!

What to Serve with Fajita Chicken Casserole

  • Simple green salad with lime dressing
  • Tortilla chips or warm tortillas
  • Fresh fruit or pico de gallo
  • Steamed rice or cilantro-lime rice

This casserole is hearty enough on its own but pairs beautifully with fresh sides.

Tips for the Best Fajita Chicken Casserole

  • Use freshly cooked or rotisserie chicken for best texture
  • Don’t overbake—just until bubbly and melted
  • Adjust seasoning to your spice preference
  • Let it rest so it slices and scoops cleanly

Storage Instructions

  • Refrigerator: Store in an airtight container for up to 4 days
  • Freezer: Freeze fully cooled casserole for up to 2 months
  • Reheating: Warm in oven or microwave until heated through

General Recipe Information

  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 45 minutes
  • Servings: 6
  • Difficulty: Easy

Fajita Chicken Casserole FAQ

Can I use raw chicken?

This recipe works best with pre-cooked chicken. If using raw, cook it fully before assembling.

Can I make this ahead of time?

Yes! Assemble, cover, and refrigerate up to 24 hours before baking.

Is this recipe spicy?

It’s mild to medium depending on your seasoning. Easily adjustable!

Can I make it dairy-free?

Use dairy-free cream cheese and shredded cheese alternatives.

Conclusion: Why You’ll Love Fajita Chicken Casserole

This Fajita Chicken Casserole is the kind of recipe you’ll keep bookmarked. It’s easy, flavorful, and endlessly adaptable—perfect for busy nights when you still want something warm and satisfying on the table.

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