This Low Carb Chicken Spinach Mushroom Bake is creamy, cheesy, and super satisfying—without any heavy pasta or rice. It’s the kind of easy weeknight dinner that feels comforting but still fits a low carb plan.
The key is sautéing the mushrooms first so they get deep, savory flavor (and don’t water down the bake). Then everything bakes into a bubbly, creamy casserole that tastes better than a restaurant skillet.
If you want a simple, high-protein dinner that’s meal prep-friendly, this Low Carb Chicken Spinach Mushroom Bake is a keeper.
Why You’ll Love This Low Carb Chicken Spinach Mushroom Bake
- High-protein & satisfying: Tender chicken pieces keep you full.
- One-dish comfort: Creamy and cheesy with minimal cleanup.
- Low carb friendly: Big flavor without the starchy sides.
- Better than takeout: Cozy skillet flavors baked at home.
- Meal prep friendly: Reheats well for lunches.
- Veggie-packed: Spinach and mushrooms in every bite.
Ingredients for Low Carb Chicken Spinach Mushroom Bake
- Boneless chicken cutlets (1 1/2 pounds, cut into bite-size pieces): Tender protein base (use turkey cutlets if you want).
- Olive oil (1 tablespoon): Helps sear and sauté.
- Mushrooms (12 ounces, sliced): Adds umami and hearty texture.
- Yellow onion (1/2 medium, sliced): Adds sweetness and depth.
- Garlic (3 cloves, minced): Builds cozy flavor.
- Baby spinach (5 ounces): Wilts into the sauce (swap with chopped kale).
- Cream cheese (4 ounces): Makes the sauce creamy.
- Heavy cream (3/4 cup): Creates a silky sauce (swap with half-and-half for lighter).
- Grated Parmesan (1/2 cup): Adds salty depth.
- Shredded mozzarella (1 1/2 cups): Melty top layer.
- Italian seasoning (1 teaspoon): Classic herb flavor.
- Salt and black pepper: To taste.
- Optional: Crushed red pepper (pinch): For gentle heat.
Low Carb Chicken Spinach Mushroom Bake Recipe (Step-by-Step)
- 1. Sear chicken pieces in olive oil over medium-high heat for 4–5 minutes, until lightly golden. Transfer to a bowl.
- 2. Sauté mushrooms and onion in the same pan for 6–8 minutes, until mushrooms are browned and most moisture is gone.
- 3. Stir in garlic and Italian seasoning for 30 seconds, until fragrant.
- 4. Whisk in cream cheese and heavy cream over medium-low heat until smooth. Add Parmesan, salt, pepper, and red pepper if using.
- 5. Fold in spinach until just wilted, then stir chicken back into the sauce.
- 6. Bake in a greased 9×13-inch dish at 375°F for 18–22 minutes, until the center is hot and bubbly.
- 7. Broil 1–2 minutes if you want a more golden top. Rest 5 minutes before serving.
Tips for Perfect Low Carb Chicken Spinach Mushroom Bake
- Brown the mushrooms well: This adds big flavor and prevents a watery sauce.
- Keep heat low for cheese: Gentle heat keeps the sauce smooth.
- Cut chicken evenly: Even pieces cook at the same speed.
- Don’t overbake: Bake just until bubbling so the chicken stays juicy.
- Add a splash of cream when reheating: It brings back the silky texture.
Variations & Substitutions
- Add more veggies: Broccoli florets or chopped zucchini work well.
- Make it extra cheesy: Add 1/2 cup more mozzarella.
- Swap the seasoning: Try Cajun seasoning for a different vibe.
- Dairy-light version: Use half-and-half and a little less cream cheese.
- Turn it into bowls: Serve over cauliflower rice for a cozy low carb meal.
Storing & Reheating
- Fridge: Store in an airtight container for 4 days.
- Freezer: Freeze up to 2 months.
- Reheat: Warm gently, adding a splash of cream if it thickens.
Serving Suggestions & Pairings
- Roasted asparagus or green beans
- Simple side salad
- Cauliflower rice
- Sautéed zucchini noodles
Reader Review: “So creamy and filling! The mushroom flavor is amazing and it reheats perfectly.”
Low Carb Chicken Spinach Mushroom Bake Recipe Card
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Yield: 6 servings
Category: Dinner
Method: Stovetop + Baked
Cuisine: American
Diet: Low Carb, Gluten-Free