Sat. Dec 13th, 2025

    Keto Fajita Chicken Casserole is a low-carb dish with a flavorful, delicious taste. It combines the strong flavors found in regular fajitas into a warm, cheesy dish(oven-baked). This recipe is ideal for evening or weekend meals. This casserole contains juicy chicken, colorful peppers, onions, spices, and a creamy sauce that brings everything together. Keto Fajita Chicken Casserole provides all of the flavor of fajitas without the tortillas or high-carb ingredients. You may serve it with cauliflower rice, lettuce wraps, or as a complete meal. Keto Fajita Chicken Casserole is simple to prepare and cooks quickly.

    Free Keto Meal Plan: STEP-BY-STEP KETO DIET PLAN FOR BEGINNERS

    STATISTICAL OVERVIEW:

    • Course: Dinner, Main
    • No. of Calories: 340 kcal
    • Diet: Keto, Low Carb, Gluten Free
    • Prep time: 15 minutes
    • Cuisine: Mexican-inspired
    • Cook time: 30 minutes
    • Single portion size: 1 cup
    • Cooking mode: Oven-baked
    • Total servings: 6
    • Level of difficulty: Easy
    • Overall time: 45 minutes

    TOOLS:

    • Knife
    • Big mixing bowl
    • Skillet
    • Aluminium foil
    • Spatula
    • Measuring cups and spoons
    • Cutting board
    • Baking dish(nine by thirteen)

    INGREDIENTS:

    • Salt
    • 2 tbsps of olive oil
    • One sliced bell pepper, green
    • 1/2 cup of cream cheese
    • One sliced onion, medium
    • 1/2 tsp of onion powder
    • Sliced bell peppers, yellow, one
    • 1 cup of mozzarella, shredded
    • 2 lbs of shredded chicken, cooked
    • 1/2 tsp of garlic powder
    • Pepper
    • One tsp of smoked paprika
    • Sliced bell peppers, red, 1
    • One cup of cheddar chees, shredded
    • 1 tbsp of fajita seasoning
    • Half a cup of sour cream

    INGREDIENT NOTES AND THEIR KETO SUBSTITUTION:

    BELL PEPPERS:

    • Bell peppers give color and sweetness without requiring lots of carbs. If you don’t have time to prepare them, you can use frozen peppers. If you want low-carb vegetables, replace some peppers with zucchini or mushrooms.

    SOUR CREAM:

    • Sour cream smooths out the sauce and adjusts the spices. Full-fat Greek yogurt serves as a keto replacement with a mild tang.

    SHREDDED CHICKEN:

    • The casserole’s base is made of shredded chicken, which nicely keeps all of the ingredients together. Rotisserie chicken, grilled chicken, and remaining baked chicken are all options. If you choose a less heavy option, you can use cooked ground chicken or turkey alternatively.

    MOZZARELLA AND CHEDDAR:

    • These both give a smooth taste and melt nicely in a casserole. For a light and spicy option, you can use Colby or Pepper Jack alternatively.

    FAJITA SEASONING:

    • Fajita seasoning adds a unique flavor.  Use sugar-free seasoning completely.  In the absence of any, combine salt, cumin, paprika, powder of chili, and garlic.

    CREAM CHEESE:

    • Cream cheese gives substance and provides the casserole with a creamy texture. For a softer, milder flavor, use mascarpone or full-fat ricotta instead.

    Free Keto Meal Plan: STEP-BY-STEP KETO DIET PLAN FOR BEGINNERS

    INSTRUCTIONS:

    1. Warm the empty oven to 375°F (190°C).
    2. Place the olive oil in the pan to heat up.
    3. Include the onions and peppers.
    4. Cook properly till it gives a soft consistency.
    5. Sprinkle the powder of garlic, smoked paprika, fajita seasoning, and onion powder.
    6. Cover by mixing.
    7. Stir the sour cream and cream cheese till a smooth texture forms.
    8. Include the chicken shreds in the dish and blend them properly.
    9. Put the onions and cooked peppers.
    10. Whisk to mix gently.
    11. Add the batter into the baking dish(nine by thirteen).
    12. Equally garnish the surface with mozzarella and cheddar.
    13. Bake till the cream cheese becomes golden and melts, for about half an hour.
    14. Before serving, leave it to rest for five minutes.

    TIPS:

    • If you want to add a spicy taste, you can add jalapeños.
    • For a fresh taste, serve this acasserole with lime juice or avocado.
    • Cut the thin slices of pepper so they will cook uniformly.
    • If the cheese browns quickly, cover it with foil.
    • Before baking, try the seasoning and adjust it according to your requirements.

    SERVING SUGGESTIONS:

    DRINKS:

    • Chilled Keto Herbal Tea
    • Lime Agua Fresca

    GREENS:

    • Spinach Lime Keto Salad
    • Avocado Lettuce Cups

    SIDES:

    • Creamy Keto Broccoli Mash
    • Cilantro Lime Cauliflower Rice

    EXTRAS:

    • Smoky Keto Salsa
    • Guacamole Bowl

    STORAGE INFORMATION:

    After chilling fully, refrigerate it in a closed bowl.

    REFRIGERATION:

    • Keep for up to three days. Heat it in the microwave or oven till completely warm.

    FREEZING:

    • Store for 50-60 days. Before warming it again, refrigerate it overnight to remove the ice.

    FAQs:

    May I use uncooked chicken?

    • Sure, but you have to prepare it first. Raw chicken will produce water, altering its texture.

    Why is my casserole so watery?

    • The peppers were not cooked properly. Cook till almost all of the liquid has evaporated.

    How can I prepare a non-dairy version?

    • Yes, you can make it with dairy-free cheese replacements, coconut yogurt, and cream cheese.

    Could I add some spices?

    • Use chipotle powder, jalapeños, or cayenne pepper to add a spice, which works very well.

    Free Keto Meal Plan: STEP-BY-STEP KETO DIET PLAN FOR BEGINNERS

    NUTRITIONAL FACTS:

    Sugar: 3 g

    Caloric content: 340 kcal

    Fiber: 2 g

    Sodium: 540 mg

    Fats: 24 g

    Proteins: 28 g

    Net carbs: 5 g

    Size/serving: 1 cup

    Total carbs: 7 g

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