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Keto Garlic Mushroom Chicken Casserole — Low-Carb Comfort Dinner Recipe

4.5 from 122 reviews

This Keto Garlic Mushroom Chicken Casserole is a comforting low-carb dinner that’s bursting with rich flavors from sautéed mushrooms, garlic, and creamy cheeses. Perfect for keto and low-carb diets, it combines tender cooked chicken with a creamy garlic mushroom sauce, baked until bubbly and golden. Quick to prepare and easy to customize, this dish makes a satisfying and wholesome weeknight meal.

Ingredients

Scale

Chicken Mixture

  • 2 cups cooked chicken, shredded or diced
  • 8 ounces mushrooms, sliced (button or cremini)
  • 4 cloves garlic, minced
  • 1 cup heavy cream
  • 1 teaspoon dried thyme
  • 1 teaspoon dried oregano
  • Salt and pepper, to taste

Cheese Topping

  • 1 cup shredded mozzarella cheese
  • 1/2 cup grated Parmesan cheese

Others

  • 1 tablespoon olive oil
  • Fresh parsley, chopped (for garnish)

Instructions

  1. Preheat Oven: Preheat your oven to 375°F (190°C) to ensure even baking and to achieve a lovely golden color on the casserole.
  2. Sauté Mushrooms: Heat olive oil in a large skillet over medium heat. Add the sliced mushrooms and sauté for 5-7 minutes, until they are golden brown and have released their moisture.
  3. Cook Garlic: Add the minced garlic to the skillet with mushrooms and cook for an additional 1-2 minutes, stirring constantly to prevent burning and to release the garlic’s fragrance.
  4. Mix Ingredients: In a large mixing bowl, combine the cooked chicken, sautéed mushrooms and garlic, heavy cream, dried thyme, dried oregano, salt, and pepper. Mix thoroughly until well combined.
  5. Assemble Casserole: Grease a 9×13-inch casserole dish. Transfer the chicken mixture evenly into the dish, spreading it out flat.
  6. Add Cheese: Sprinkle shredded mozzarella cheese and grated Parmesan cheese evenly over the top of the chicken mixture.
  7. Bake: Place the casserole in the preheated oven and bake for 25-30 minutes, until the cheese topping is bubbly and golden brown.
  8. Garnish and Serve: Remove the casserole from the oven and let it cool for a few minutes. Garnish with freshly chopped parsley before serving. Enjoy your warm, comforting low-carb casserole!

Notes

  • You can substitute cooked rotisserie chicken to save time.
  • For a lower fat version, consider using half-and-half instead of heavy cream, though the texture will be less rich.
  • If you prefer more herbs, fresh thyme and oregano can be used instead of dried.
  • This casserole is freezer-friendly; assemble and freeze before baking, then thaw overnight and bake as directed.
  • To make it dairy-free, substitute with coconut cream and a dairy-free cheese option, though this will impact flavor.

Keywords: Keto chicken casserole, garlic mushroom chicken, low carb dinner, keto casserole, baked chicken dish, comfort food, low carb chicken recipe