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

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

# How to Make It:

01 - Preheat oven to 400°F. Grease a 9x13-inch baking dish with cooking spray or a small amount of oil.
02 - Pat chicken breasts dry with paper towels. Season both sides generously with salt and black pepper, pressing the seasoning into the meat.
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 until softened and lightly browned. Add minced garlic and cook for 30 seconds until fragrant, stirring constantly.
05 - Add fresh spinach to the skillet. Cook for about 1 minute, tossing frequently, until just wilted. Remove from heat immediately.
06 - Arrange seared chicken breasts in the prepared baking dish in a single layer. Spread the mushroom-spinach mixture evenly over the chicken.
07 - Pour heavy cream evenly over the chicken and vegetables. Sprinkle shredded mozzarella cheese across the entire surface.
08 - Bake uncovered for 25-30 minutes until chicken is cooked through (internal temperature reaches 165°F) and cheese is golden and bubbly.
09 - Let the casserole rest for 5 minutes before serving to allow the sauce to thicken slightly.

# Expert Advice:

01 -
  • The heavy cream creates this velvety sauce that feels indulgent but keeps everything perfectly low carb
  • Its one of those rare meals that tastes restaurant fancy but takes less than an hour from start to finish
02 -
  • Searing the chicken first creates a flavor foundation that baking alone simply cannot achieve
  • Overbaking will dry out the chicken so check that internal temp around the 25 minute mark
03 -
  • Pound your chicken breasts to even thickness before searing for the most consistent results
  • Let the cream come to room temperature before pouring so it distributes evenly

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