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Keto Garlic Mushroom Chicken Casserole

A comforting and flavorful casserole that combines juicy chicken, earthy mushrooms, and creamy garlic sauce, perfect for keto diets.
Print Recipe
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: American, Comfort Food
Calories: 450
Ingredients Method Notes

Ingredients
  

For the Casserole
  • 1 pound boneless, skinless chicken breasts, diced Choose high-quality chicken for better flavor.
  • 8 ounces fresh mushrooms, sliced (shiitake and cremini recommended) Mix of shiitake and cremini enhances flavor.
  • 1 medium onion, chopped
  • 3 cloves garlic, minced
  • 1 cup heavy cream (or coconut cream for dairy-free) For a dairy-free option, use coconut cream.
  • 1 cup shredded mozzarella cheese
  • 2 tablespoons olive oil For sautéing.
  • Salt and pepper, to taste
  • Fresh parsley, chopped (for garnish)
For Extra Flavor
  • 1 teaspoon dried thyme (or fresh if available) Fresh thyme provides a burst of flavor.

Method
 

Preparation
  1. Preheat your oven to 375°F (190°C).
  2. In a large skillet, heat 2 tablespoons of olive oil over medium heat. Add the chopped onion and sauté until translucent (about 3–4 minutes).
Cooking
  1. Add the sliced mushrooms and continue sautéing until tender and moisture is released, about 5-7 minutes.
  2. Add minced garlic, salt, pepper, and thyme. Cook for an additional minute until garlic is fragrant.
  3. Stir in the diced chicken breast, mixing well. Cook until the chicken is no longer pink, around 5–6 minutes.
  4. Pour in the heavy cream and bring to a low simmer, allowing the sauce to thicken slightly.
  5. Remove from heat and stir in half of the shredded mozzarella until melted.
  6. Transfer the mixture to a greased casserole dish and top with the remaining mozzarella cheese.
  7. Bake in the preheated oven for 20-25 minutes, or until the cheese is bubbly and golden brown.
Serving
  1. Remove from the oven and let cool for a few minutes. Sprinkle with fresh parsley before serving.

Notes

For optimal texture and flavor, consider using different types of mushrooms. To lighten the dish, swap heavy cream for half-and-half or a nut-based alternative. For vegetarian, substitute chicken with lentils or chickpeas.