Chicken Spinach & Mushroom Low Carb Oven Dish (Printable)

Creamy, protein-packed casserole with tender chicken, spinach, and mushrooms. Ready in 40 minutes.

# What You'll Need:

→ Proteins

01 - 2 cups cooked chicken breast, chopped or shredded

→ Vegetables

02 - 4 cups fresh spinach
03 - 2 cups mushrooms, sliced
04 - 1 small onion, finely chopped
05 - 3 cloves garlic, minced

→ Dairy

06 - 1 cup mozzarella cheese, shredded
07 - 1/4 cup parmesan cheese, grated
08 - 1/2 cup heavy cream

→ Oils & Seasonings

09 - 2 tablespoons olive oil
10 - 1 teaspoon Italian seasoning
11 - Salt and pepper, to taste

# How to Make It:

01 - Preheat oven to 375°F. Lightly grease a 9×13 inch casserole dish.
02 - In a large skillet, heat olive oil over medium heat. Add onions and mushrooms; sauté for 5–7 minutes until soft and lightly browned.
03 - Add garlic and cook for 1 minute until fragrant.
04 - Stir in spinach and cook until wilted. Season the mixture with salt, pepper, and Italian seasoning.
05 - Spread the cooked chicken evenly across the bottom of the prepared casserole dish.
06 - Layer the sautéed mushroom, spinach, and onion mixture over the chicken.
07 - Drizzle heavy cream evenly over the top.
08 - Sprinkle mozzarella and parmesan cheese over the entire dish.
09 - Bake uncovered for 20–25 minutes, or until the cheese is melted and golden brown.
10 - Remove from oven and let rest for 5 minutes before serving.

# Expert Tips:

01 -
  • It reheats beautifully for lunch the next day, maybe even better than fresh
  • The heavy cream creates this velvety sauce without needing any thickeners or flour
  • You can prep everything ahead and just bake when you are ready to eat
02 -
  • Squeezing excess moisture from the cooked spinach prevents your casserole from becoming watery
  • The heavy cream looks thin going in but thickens beautifully as it bakes with the cheese
03 -
  • Pat the mushrooms dry with paper towels before cooking so they brown instead of steam
  • Let the casserole cool completely before covering with foil to prevent condensation from making it soggy
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