Chicken Spinach & Mushroom Low Carb

Featured in: Simple Homemade Dinners

This comforting oven-baked dish combines juicy chicken breast with sautéed mushrooms, fresh spinach, and aromatic onions. The heavy cream creates a rich base while melted mozzarella and parmesan form a golden, bubbly topping. Ready in just 40 minutes total, this makes an excellent make-ahead option that reheats beautifully for lunches or dinners throughout the week.

Updated on Sun, 08 Feb 2026 21:42:46 GMT
Golden bubbly cheese topping on Chicken Spinach & Mushroom Low Carb Oven Dish, baked with spinach and mushrooms. Pin It
Golden bubbly cheese topping on Chicken Spinach & Mushroom Low Carb Oven Dish, baked with spinach and mushrooms. | lushkettle.com

Savor the rich, comforting flavors of a home-cooked meal that fits perfectly into your healthy lifestyle. This Chicken Spinach & Mushroom Low Carb Oven Dish combines tender chicken breast with earthy mushrooms and fresh spinach, all enveloped in a creamy sauce and topped with a bubbly layer of melted cheese. It is the ideal solution for a satisfying, high-protein dinner that feels indulgent while keeping the carbohydrates to a minimum.

Golden bubbly cheese topping on Chicken Spinach & Mushroom Low Carb Oven Dish, baked with spinach and mushrooms. Pin It
Golden bubbly cheese topping on Chicken Spinach & Mushroom Low Carb Oven Dish, baked with spinach and mushrooms. | lushkettle.com

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The secret to this dish's success is the layering of flavors. By sautéing the onions, mushrooms, and garlic before baking, you unlock a deep savory profile that pairs beautifully with the heavy cream and seasonings. It’s a versatile recipe that works just as well for a family dinner as it does for your weekly meal prep routine.

Ingredients

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  • 2 cups cooked chicken breast, chopped or shredded
  • 4 cups fresh spinach
  • 2 cups mushrooms, sliced
  • 1 small onion, finely chopped
  • 3 cloves garlic, minced
  • 1 cup mozzarella cheese, shredded
  • 1/4 cup parmesan cheese, grated
  • 1/2 cup heavy cream
  • 2 tablespoons olive oil
  • 1 teaspoon Italian seasoning
  • Salt and pepper, to taste

Instructions

Step 1
Preheat oven to 375°F (190°C). Lightly grease a 9×13 inch (23×33 cm) casserole dish.
Step 2
In a large skillet, heat olive oil over medium heat. Add onions and mushrooms; sauté for 5–7 minutes until soft and lightly browned.
Step 3
Add garlic and cook for 1 minute until fragrant.
Step 4
Stir in spinach and cook until wilted. Season the mixture with salt, pepper, and Italian seasoning.
Step 5
Spread the cooked chicken evenly across the bottom of the prepared casserole dish.
Step 6
Layer the sautéed mushroom, spinach, and onion mixture over the chicken.
Step 7
Drizzle heavy cream evenly over the top.
Step 8
Sprinkle mozzarella and parmesan cheese over the entire dish.
Step 9
Bake uncovered for 20–25 minutes, or until the cheese is melted and golden brown.
Step 10
Remove from oven and let rest for 5 minutes before serving.

Zusatztipps für die Zubereitung

To prevent your casserole from becoming watery, ensure that you sauté the mushrooms and spinach thoroughly until most of their natural moisture has evaporated. If you are in a hurry, using a store-bought rotisserie chicken is a fantastic way to cut down on prep time without losing flavor.

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Varianten und Anpassungen

If you like a bit of spice, add a pinch of red pepper flakes to the skillet when cooking the vegetables. You can also experiment with different cheeses; swapping mozzarella for sharp cheddar or provolone can provide a different but equally delicious flavor profile.

Serviervorschläge

This oven dish is a complete meal on its own, but it also pairs wonderfully with a side of cauliflower rice or a simple green salad. Because it reheats so well, it is a perfect choice for taking to work the next day.

Sliced mushrooms and wilted spinach layer in Chicken Spinach & Mushroom Low Carb Oven Dish, served warm for dinner. Pin It
Sliced mushrooms and wilted spinach layer in Chicken Spinach & Mushroom Low Carb Oven Dish, served warm for dinner. | lushkettle.com

Whether you are sticking to a low-carb diet or simply want a flavor-packed chicken dinner, this casserole is sure to satisfy. With its creamy texture and golden cheese topping, it is a meal the whole family will ask for again and again.

Recipe Questions & Answers

Can I use rotisserie chicken?

Yes, rotisserie chicken works perfectly and saves time. Simply shred or chop about 2 cups of meat and layer it in the dish before adding the vegetables and cheese.

How do I prevent the casserole from being watery?

Sauté the mushrooms and spinach thoroughly until they release their moisture and wilt completely. This step prevents excess liquid from accumulating during baking.

Can I make this ahead of time?

Absolutely. Assemble the entire casserole, cover tightly, and refrigerate for up to 24 hours before baking. You may need to add 5–10 minutes to the baking time if baking cold from the refrigerator.

How should I store leftovers?

Store cooled leftovers in an airtight container in the refrigerator for up to 4 days. Reheat individual portions in the microwave or cover the dish with foil and warm in a 350°F oven.

What can I substitute for heavy cream?

For a lower-fat option, substitute half-and-half or evaporated milk. Keep in mind the sauce may be slightly less rich. Coconut milk works for a dairy-free version but will alter the flavor profile.

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Chicken Spinach & Mushroom Low Carb

Tender chicken, spinach, and mushrooms baked in a creamy cheese sauce. A satisfying low-carb meal perfect for busy weeknights.

Time to Prep
15 mins
Time to Cook
25 mins
Full Prep Time
40 mins
Created By Samantha Reeves


Skill Level Easy

Culinary Tradition American

Portion 4 Serving Size

Dietary Details No Gluten, Reduced-Carb

What You Need

Proteins

01 2 cups cooked chicken breast, chopped or shredded

Vegetables

01 4 cups fresh spinach
02 2 cups mushrooms, sliced
03 1 small onion, finely chopped
04 3 cloves garlic, minced

Dairy

01 1 cup mozzarella cheese, shredded
02 1/4 cup parmesan cheese, grated
03 1/2 cup heavy cream

Oils & Seasonings

01 2 tablespoons olive oil
02 1 teaspoon Italian seasoning
03 Salt and pepper, to taste

Steps

Step 01

Prepare the Oven and Dish: Preheat oven to 375°F. Lightly grease a 9×13 inch casserole dish with cooking spray or a small amount of olive oil.

Step 02

Sauté Aromatics: In a large skillet, heat olive oil over medium heat. Add onions and mushrooms; sauté for 5–7 minutes until soft and lightly browned, stirring occasionally.

Step 03

Add Garlic and Spinach: Add minced garlic to the skillet and cook for 1 minute until fragrant. Stir in fresh spinach and cook until wilted, about 2–3 minutes. Season the mixture with salt, pepper, and Italian seasoning.

Step 04

Layer Chicken: Spread the cooked chicken evenly across the bottom of the prepared casserole dish.

Step 05

Add Vegetable Mixture: Layer the sautéed mushroom, spinach, and onion mixture evenly over the chicken.

Step 06

Add Cream and Cheese: Drizzle heavy cream evenly over the top of the layered ingredients. Sprinkle mozzarella and parmesan cheese over the entire dish.

Step 07

Bake Until Golden: Bake uncovered for 20–25 minutes, or until the cheese is melted, bubbly, and golden brown on top.

Step 08

Rest Before Serving: Remove from oven and let rest for 5 minutes before serving to allow the casserole to set for easier portioning.

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Tools You'll Need

  • Large skillet
  • 9×13 inch casserole dish
  • Chef's knife
  • Cutting board
  • Mixing spoon
  • Measuring cups and spoons

Allergy Info

Review every ingredient for allergens and reach out to your doctor with concerns.
  • Contains dairy (mozzarella, parmesan, heavy cream)
  • Contains lactose
  • Gluten-free if all ingredients are certified gluten-free

Nutrition Info (per portion)

Details offered for informational purposes, not as a substitute for professional health guidance.
  • Calories: 390
  • Fats: 26 g
  • Carbohydrates: 6 g
  • Proteins: 32 g

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