This Chicken, Spinach & Mushroom Low-Carb Oven Dish is creamy, cheesy, comforting, and packed with protein. Tender chicken, sautéed mushrooms, and spinach are baked in a rich garlic cream sauce with a golden cheese topping—perfect for an easy family dinner!
Prep Time: 15 minutes
Cook Time: 30–35 minutes
Total Time: 45–50 minutes
Servings: 6
Ingredients
For the Chicken & Vegetables
2 tablespoons olive oil
1½ pounds boneless, skinless chicken breasts, cut into bite-sized pieces
8 ounces mushrooms, sliced
3 cups fresh spinach
3 cloves garlic, minced
½ medium onion, finely chopped
½ teaspoon salt
½ teaspoon black pepper
1 teaspoon Italian seasoning
½ teaspoon paprika
For the Creamy Sauce
1 cup heavy cream
½ cup chicken broth
4 ounces cream cheese, softened
½ cup grated Parmesan cheese
½ teaspoon garlic powder
¼ teaspoon red pepper flakes, optional
For the Topping
1 cup shredded mozzarella cheese
¼ cup grated Parmesan cheese
Fresh parsley, optional, for garnish
Instructions
1. Prepare the oven
Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish.
2. Cook the chicken
Heat the olive oil in a large skillet over medium-high heat.
Season the chicken with salt, pepper, Italian seasoning, and paprika. Add it to the skillet and cook for about 4–5 minutes, stirring occasionally, until lightly browned. The chicken does not need to be fully cooked at this stage.
Transfer the chicken to the prepared baking dish.
3. Cook the mushrooms and spinach
In the same skillet, add the onion and mushrooms. Cook for 4–5 minutes until the mushrooms soften and release their moisture.
Add the garlic and cook for about 30 seconds until fragrant.
Add the spinach and stir until wilted.
Spread the mushroom and spinach mixture over the chicken.
4. Make the creamy sauce
Reduce the heat to medium-low. Add the heavy cream, chicken broth, and softened cream cheese to the skillet.
Whisk until the cream cheese melts and the sauce becomes smooth.
Stir in the Parmesan cheese, garlic powder, and red pepper flakes, if using. Cook for 2–3 minutes until slightly thickened.
5. Assemble the casserole
Pour the creamy sauce evenly over the chicken, spinach, and mushrooms.
Sprinkle the mozzarella and remaining Parmesan cheese over the top.
6. Bake
Bake uncovered for 25–30 minutes, or until the chicken is fully cooked and reaches an internal temperature of 165°F (74°C) and the cheese is golden and bubbly.
For a more golden topping, broil for 1–2 minutes at the end, watching carefully.
7. Serve
Allow the dish to rest for about 5 minutes before serving. Garnish with fresh parsley if desired.
Nut Information & Allergy Guide
Does this recipe contain nuts?
No peanuts or tree nuts are included in this recipe as written.
However, if you are serving someone with a serious nut allergy, always read the labels of packaged ingredients.
Check labels on:
Chicken broth
Cream cheese
Parmesan cheese
Mozzarella cheese
Seasoning blends
Pre-shredded cheese products
Some products may be manufactured in facilities that also process peanuts or tree nuts.
Common allergen information
Allergen Information
Peanuts Not included
Tree Nuts Not included
Milk Contains dairy
Eggs Naturally egg-free as written
Gluten Naturally gluten-free if all packaged ingredients are certified gluten-free
Chicken Contains chicken
Important: If preparing food for someone with a severe allergy, check every ingredient label and avoid cross-contact in your kitchen.
Delicious Variations
Bacon Chicken Version
Add 6 slices of cooked, crumbled bacon before adding the cheese topping.
Spicy Version
Add extra red pepper flakes, cayenne pepper, or diced jalapeños.
Extra Cheesy Version
Add an extra ½ cup of mozzarella or use a blend of mozzarella and cheddar.
More Vegetables
Add chopped broccoli, cauliflower, zucchini, or bell peppers.
High-Protein Version
Use a little extra chicken and replace part of the heavy cream with plain Greek yogurt. Add the yogurt after removing the sauce from direct heat to help prevent curdling.
Dairy-Free Option
Use dairy-free cream cheese, unsweetened dairy-free cooking cream, and dairy-free shredded cheese. Check labels carefully, as some dairy-free products may contain nuts such as cashews or almonds.
Tips for the Best Chicken Spinach & Mushroom Bake
Do not overcrowd the skillet when browning the chicken.
Cook the mushrooms until most of their released liquid has evaporated to prevent a watery casserole.
Fresh spinach works best, but frozen spinach can be used if completely thawed and squeezed dry.
Use freshly grated Parmesan for the smoothest sauce.
Let the casserole rest for 5–10 minutes before serving so the sauce can thicken.
Frequently Asked Questions
1. Is this Chicken Spinach and Mushroom Oven Dish low carb?
Yes. The recipe contains no pasta, rice, potatoes, or flour, making it suitable for a low-carb eating plan.
2. Is it keto-friendly?
It can fit into a keto-style diet, depending on your portion size and the specific ingredients you use. Choose products with no added sugars.
3. Can I use chicken thighs instead of chicken breasts?
Yes! Boneless, skinless chicken thighs work very well and can add extra flavor and tenderness.
4. Can I use frozen spinach?
Yes. Thaw it completely and squeeze out as much excess water as possible before adding it to the dish.
5. Can I prepare this ahead of time?
Yes. Assemble the casserole, cover, and refrigerate for up to 24 hours before baking. You may need to add a few extra minutes to the baking time.
6. How do I store leftovers?
Store cooled leftovers in an airtight container in the refrigerator for 3–4 days.
7. Can I freeze this dish?
Yes, although creamy sauces may change texture slightly after freezing. Freeze in an airtight container for up to 2 months and thaw overnight in the refrigerator before reheating.
8. How do I reheat it?
Reheat in the oven at 350°F (175°C) until hot throughout, or microwave individual portions.
9. Is this recipe nut-free?
Yes, the recipe itself contains no peanuts or tree nuts. Always check packaged ingredient labels for cross-contact warnings when serving someone with a severe allergy.
10. What can I serve with it?
For a low-carb meal, serve it with:
Cauliflower rice
Roasted broccoli
Green beans
A fresh garden salad
Zucchini noodles
Final Touch
Creamy, cheesy, and loaded with tender chicken, spinach, and mushrooms, this easy oven-baked dish is a satisfying low-carb, high-protein dinner the whole family can enjoy.
With years of experience in restaurant research and local SEO, Sara creates accurate, user-friendly guides that work for both people and search engines. Her goal is to help users go from search results to their nearest restaurant or menu choice with as few clicks as possible.
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