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Fajita Chicken Casserole

When it comes to meals that are hearty, flavorful, and effortlessly satisfying, Fajita Chicken Casserole takes the lead. This crowd-friendly dish brings together the vibrant spices of fajitas with the cozy, baked goodness of a classic casserole. Ideal for weeknight dinners or casual get-togethers, it’s loaded with tender shredded chicken, crisp bell peppers, onions, and melted Mexican cheese—all wrapped in a creamy, savory blend that’s hard to resist. If you’re after a simple, delicious dinner with minimal fuss, this one’s a keeper.


🧾 Ingredients for Fajita Chicken Casserole

Here’s what you’ll need to whip up this deliciously easy meal:

IngredientQuantity
Cooked boneless chicken, shredded4 cups
Sour cream¾ cup
Chicken broth½ cup
Diced tomatoes (with juice)1¼ cups
Bell peppers, thinly sliced2 (any color)
Yellow onion, thinly sliced1 large
Shredded Mexican cheese (divided)1½ cups
Panko breadcrumbs1 cup
Fajita seasoning2 tablespoons
Fresh cilantro, chopped1 tablespoon

Optional Garnishes:

  • Chopped cilantro
  • Sliced avocado
  • Lime wedges
  • Jalapeños for extra spice

👩‍🍳 Step-by-Step Instructions

Step 1: Preheat the Oven
Set your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with cooking spray or a bit of olive oil.

Step 2: Mix the Filling
In a large bowl, combine shredded chicken, sour cream, chicken broth, diced tomatoes, sliced bell peppers, and onion. Stir in 1 cup of the cheese, fajita seasoning, and chopped cilantro. Mix until everything is evenly coated and flavorful.

Step 3: Assemble the Casserole
Transfer the chicken mixture into the prepared baking dish, spreading it out evenly so every bite has a good mix of ingredients.

Step 4: Add Cheese and Crunchy Topping
Sprinkle the remaining ½ cup of cheese over the top. In a separate small bowl, toss the panko breadcrumbs with a bit of melted butter or olive oil until coated. Evenly spread the breadcrumbs over the cheese layer for a golden, crispy topping.

Step 5: Bake It Up
Cover the dish with foil and bake for 25–30 minutes, until hot and bubbly. Then, remove the foil and bake for another 10 minutes to brown the topping and let the flavors deepen.

Step 6: Cool Slightly and Serve
Remove the casserole from the oven and let it rest for a few minutes before serving. This short wait helps the casserole set, making it easier to portion. Garnish with your favorite toppings and enjoy!


This Fajita Chicken Casserole combines the boldness of Tex-Mex with the comfort of a home-cooked bake—perfect for making dinner feel special without spending hours in the kitchen.

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