Low Carb Chicken Spinach Mushroom (Printable)

Savory chicken casserole with mushrooms, spinach, and melted cheese in a creamy low-carb sauce.

# What You'll Need:

→ Proteins

01 - 4 boneless skinless chicken breasts (about 1.5 lbs)

→ Vegetables

02 - 8 oz cremini or white mushrooms, sliced
03 - 4 cups fresh baby spinach
04 - 2 cloves garlic, minced

→ Dairy

05 - 1 cup shredded mozzarella cheese
06 - 1/2 cup heavy cream

→ Pantry Staples

07 - 2 tbsp olive oil
08 - 1/2 tsp salt
09 - 1/4 tsp ground black pepper

# Directions:

01 - Preheat oven to 400°F. Lightly grease a 9x13-inch baking dish with cooking spray or a small amount of olive oil.
02 - Pat chicken breasts dry with paper towels. Season both sides generously with salt and black pepper, pressing gently to help the seasoning adhere.
03 - Heat olive oil in a large skillet over medium-high heat until shimmering. Add chicken breasts and sear for 2-3 minutes per side until golden brown. Transfer to a plate and set aside.
04 - In the same skillet, add sliced mushrooms. Sauté for 3-4 minutes, stirring occasionally, until mushrooms release their moisture and begin to brown.
05 - Add minced garlic to the mushrooms and cook for 30 seconds until fragrant, stirring constantly to prevent burning.
06 - Add fresh spinach to the skillet and toss with the mushroom mixture. Cook for 1 minute until just wilted. Remove from heat.
07 - Arrange seared chicken breasts in the prepared baking dish. Spread the mushroom-spinach mixture evenly over the chicken.
08 - Pour heavy cream evenly over the chicken and vegetables. Sprinkle shredded mozzarella cheese across the top, covering the surface.
09 - Bake uncovered for 25-30 minutes until chicken is cooked through (internal temperature reaches 165°F) and cheese is golden and bubbly.
10 - Remove from oven and let the casserole rest for 5 minutes before serving to allow juices to redistribute.

# Expert Tips:

01 -
  • The heavy cream creates this velvety sauce that feels indulgent despite being low carb
  • Everything bakes in one dish so cleanup is practically nonexistent
02 -
  • Searing the chicken first makes a huge difference in final flavor
  • The sauce will look thin going into the oven but thickens beautifully
03 -
  • Pat the chicken dry before searing for better browning
  • Room temperature cream incorporates more smoothly than cold

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