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Keto Garlic Mushroom Chicken Casserole — Low-Carb Comfort Dinner

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This creamy, cheesy keto garlic mushroom chicken casserole is the ultimate low-carb comfort food! Packed with protein and flavor in every bite.

  • Author: Ella
  • Prep Time: 15 minutes
  • Cook Time: 25–30 minutes
  • Total Time: 40–45 minutes
  • Yield: 4–6 servings
  • Category: Dinner, Main Course
  • Method: Baked, Skillet
  • Cuisine: Keto, Low-Carb, American
  • Diet: Gluten Free

Ingredients

2 cups cooked chicken, shredded or diced

8 oz mushrooms (button or cremini), sliced

4 cloves garlic, minced

1 cup heavy cream

1 cup shredded mozzarella cheese

½ cup grated Parmesan cheese

1 tbsp olive oil

1 tsp dried thyme

1 tsp dried oregano

Salt and pepper, to taste

Fresh parsley, chopped (for garnish)

Instructions

Preheat the Oven:
Preheat to 375°F (190°C).

Sauté the Mushrooms:
Heat olive oil in a skillet over medium heat. Add mushrooms and cook for 5–7 minutes until browned and moisture has evaporated.

Add Garlic:
Stir in garlic and sauté for another 1–2 minutes until fragrant. Avoid burning.

Mix the Filling:
In a large mixing bowl, combine cooked chicken, sautéed mushrooms and garlic, heavy cream, thyme, oregano, salt, and pepper.

Assemble the Casserole:
Spread the mixture into a greased 9×13-inch casserole dish.

Top with Cheese:
Sprinkle mozzarella and Parmesan cheese evenly over the top.

Bake:
Bake uncovered for 25–30 minutes, or until the cheese is melted and bubbly.

Garnish and Serve:
Let cool slightly, then garnish with chopped parsley. Serve hot.

Notes

Optional Crusty Top: Broil for 2–3 minutes at the end for a golden, crispy cheese topping.

Add Veggies: Mix in cooked spinach, steamed zucchini, or broccoli for more fiber.

Dairy-Free Swap: Use coconut cream and dairy-free cheese alternatives if needed.

Cheese Variety: Try cheddar, gouda, or pepper jack to change the flavor profile.

Storage: Refrigerate in an airtight container for up to 3 days.