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Chicken Spinach and Mushroom Low-Carb Casserole Recipe

4.9 from 60 reviews

This Chicken Spinach and Mushroom Low-Carb Casserole is a creamy, comforting dish perfect for a nutritious family meal. Featuring tender chicken breasts baked with sautéed mushrooms, fresh baby spinach, and a rich green onion cream cheese sauce, it’s a flavorful low-carb option topped with melted mozzarella cheese for a delicious finish.

Ingredients

Scale

Protein

  • 6 thin-sliced chicken breasts

Dairy

  • 1 container (8 oz) green onion cream cheese
  • 8 oz shredded mozzarella cheese

Produce

  • 1 large package sliced mushrooms (approximately 8 oz)
  • 1 small bag fresh baby spinach (about 5 oz)

Liquids & Fats

  • ¼ cup olive oil
  • ½ cup chicken broth

Seasonings

  • 1 dash Weber Herb and Garlic Seasoning
  • Salt and pepper to taste

Instructions

  1. Preheat Oven: Preheat the oven to 375°F (190°C). Lightly grease a 13×9-inch baking dish with olive oil to prevent sticking.
  2. Prepare Chicken: Arrange the thin-sliced chicken breasts in a single layer in the baking dish. Season evenly with salt, pepper, and Weber Herb and Garlic Seasoning for a flavorful base.
  3. Sauté Mushrooms: Heat a skillet over medium heat with a small amount of olive oil. Add the sliced mushrooms and sauté until they become soft and golden brown, releasing their savory aroma.
  4. Layer Vegetables: Spread the sautéed mushrooms evenly over the chicken breasts in the baking dish. Then, add a generous handful of fresh baby spinach over the mushrooms.
  5. Make Sauce: In a bowl, combine the green onion cream cheese, olive oil, and chicken broth. Stir together until the mixture forms a rich, pourable sauce. It does not need to be perfectly smooth.
  6. Assemble Casserole: Pour the cream cheese sauce evenly over the chicken, mushrooms, and spinach layers making sure everything is covered well.
  7. Bake Covered: Cover the dish loosely with aluminum foil without sealing it tightly. Bake in the preheated oven for 20 minutes to allow the chicken to start cooking and flavors to meld.
  8. Bake Uncovered: Remove the foil and continue baking for another 20 minutes. This step helps reduce excess moisture and begin browning the chicken and vegetables.
  9. Add Cheese and Finish Baking: Sprinkle the shredded mozzarella cheese evenly over the casserole. Return to the oven for 5 to 10 minutes until the cheese is melted and starting to turn golden brown along the edges.
  10. Serve: Remove the casserole from the oven and serve hot to enjoy the creamy, cheesy, and savory flavors at their best.

Notes

  • You can substitute fresh spinach with frozen spinach if fresh is unavailable, but be sure to thaw and drain excess moisture before using.
  • Adjust seasoning levels according to your taste preference; the Herb and Garlic seasoning adds a nice flavorful boost but can be omitted.
  • Leftovers can be stored in an airtight container in the refrigerator for up to 3 days and reheated in the oven or microwave.
  • For a dairy-free version, substitute the cream cheese and mozzarella with vegan alternatives.
  • Ensure chicken breasts are thinly sliced for even cooking and tenderness.

Keywords: chicken casserole, low carb dinner, creamy chicken bake, spinach mushroom casserole, mozzarella cheese bake