Fajita chicken casserole is one of those dishes that brings together the best of both worlds: the smoky, charred flavors of grilled fajitas and the comforting warmth of a casserole. It's perfect for those busy weeknights when you want something hearty yet healthy. Growing up in the Midwest, casseroles were a staple in our household, but as I started to focus more on low-carb meals, I wanted to find a way to enjoy those familiar flavors without the extra carbs. This dish is not only delicious but also a breeze to prepare, making it a go-to for anyone juggling a hectic schedule.
This low-carb fajita chicken casserole pairs wonderfully with a simple side salad or some steamed broccoli for a complete meal. If you're not strictly low-carb, you might enjoy it with a small serving of cauliflower rice or a few tortilla chips for some added crunch. A dollop of sour cream or a sprinkle of fresh cilantro on top can also elevate the flavors.
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Low Carb Fajita Chicken Casserole
Servings: 4

Ingredients
1 pound boneless, skinless chicken breasts
1 tablespoon olive oil
1 teaspoon smoked paprika
1 teaspoon garlic powder
1 teaspoon onion powder
1 teaspoon ground cumin
1/2 teaspoon chili powder
Salt and pepper to taste
1 red bell pepper, sliced
1 green bell pepper, sliced
1 yellow onion, sliced
1 cup shredded cheddar cheese
1/2 cup sour cream
1/4 cup chopped fresh cilantro
1 tablespoon olive oil
1 teaspoon smoked paprika
1 teaspoon garlic powder
1 teaspoon onion powder
1 teaspoon ground cumin
1/2 teaspoon chili powder
Salt and pepper to taste
1 red bell pepper, sliced
1 green bell pepper, sliced
1 yellow onion, sliced
1 cup shredded cheddar cheese
1/2 cup sour cream
1/4 cup chopped fresh cilantro
Directions
Preheat your oven to 375°F (190°C).
Slice the chicken breasts into thin strips.
In a large skillet over medium-high heat, add olive oil and chicken strips. Season with smoked paprika, garlic powder, onion powder, cumin, chili powder, salt, and pepper.
Cook the chicken until it's browned and cooked through, about 5-7 minutes. Remove from the skillet and set aside.
In the same skillet, add the sliced bell peppers and onion. Cook until they are tender and slightly charred, about 5 minutes.
In a large mixing bowl, combine the cooked chicken, sautéed peppers and onions, half of the shredded cheese, and sour cream. Mix well.
Transfer the mixture to a baking dish and top with the remaining cheese.
Bake in the preheated oven for 15-20 minutes, or until the cheese is melted and bubbly.
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Garnish with chopped cilantro before serving.
Variations & Tips
For a spicier kick, add some sliced jalapeños to the pepper and onion mix. You can also substitute the chicken with beef strips or shrimp for a different protein option. If you're looking to add more veggies, consider tossing in some sliced mushrooms or zucchini. For those who enjoy a bit of tang, a squeeze of lime juice over the top before serving can brighten the flavors.