Chicken, Spinach, and Mushroom Low Carb Oven Dish
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If you’re craving a cozy, flavorful dinner that feels both comforting and light, this Chicken, Spinach, and Mushroom Low Carb Oven Dish is a total winner. The magic really starts when you place the cooked chicken breasts in the prepared baking dish and layer on that luscious creamy spinach and mushroom sauce, topped with ooey-gooey melted cheese. This dish brings together tender chicken, sautéed greens, and earthy mushrooms in such a perfectly balanced way that you’ll want to make it again and again.

Ingredients You’ll Need
Simple, fresh ingredients really let the flavors shine in this recipe. Each component plays its part—from tender chicken breasts offering a juicy base to rich cheeses creating a golden, melty topping. Let’s break down what makes this dish so comforting and delicious.
- 4 boneless, skinless chicken breasts: The star of the dish, providing protein and a satisfying, juicy texture.
- 2 tbsp olive oil: Used for cooking the chicken and vegetables, adding richness and depth.
- 2 cups fresh spinach, chopped: Adds vibrant color and a mild, fresh flavor that offsets the richness.
- 1 cup mushrooms, sliced: Bring an earthy note and meaty texture to complement the chicken perfectly.
- 3 cloves garlic, minced: Infuses the dish with aromatic warmth and a hint of spice.
- 1/2 cup heavy cream: Creates a silky sauce that ties the spinach and mushrooms together beautifully.
- 1/4 cup chicken broth (or vegetable broth): Lightens the richness while adding savory depth.
- 1/2 cup shredded mozzarella cheese: Melts into a gooey, stretchy blanket of deliciousness.
- 1/4 cup grated Parmesan cheese: Adds a sharp, salty punch that elevates the flavors.
- Salt and pepper, to taste: Essential seasonings that bring all the flavors to life.
- 1 tsp dried thyme or Italian seasoning: A fragrant herb blend that complements the chicken and creamy sauce wonderfully.
- Fresh parsley, chopped (optional, for garnish): Adds a pop of color and fresh herbal brightness at the end.
How to Make Place the cooked chicken breasts in the prepared baking dish
Step 1: Preheat and Prepare
Start by setting your oven to 375°F (190°C). While the oven warms up, grease your baking dish or line it with parchment paper to prevent sticking. This simple prep makes all the difference for an easy cleanup later.
Step 2: Cook the Chicken
Heat olive oil in a large skillet over medium heat. Season your chicken breasts generously with salt, pepper, and dried thyme or Italian seasoning. Cook each side for 5 to 6 minutes until they’re beautifully golden and cooked through. Once ready, remove them from the skillet and set aside to rest gently.
Step 3: Sauté the Vegetables
Using the same skillet (this way you capture all those caramelized flavors), add the minced garlic and cook for about a minute until fragrant. Toss in the sliced mushrooms and cook until they soften, around 5 minutes. Then stir in the chopped spinach and cook for an additional 2 to 3 minutes until it wilts down, combining those fresh, earthy flavors.
Step 4: Make the Creamy Sauce
Pour the heavy cream and chicken broth into the skillet with the spinach and mushrooms, stirring to blend everything nicely. Let it come to a gentle simmer and cook for 3 to 4 minutes, allowing the sauce to thicken slightly and soak up all those wonderful flavors.
Step 5: Assemble and Bake
Now comes the moment you’ve been waiting for—place the cooked chicken breasts in the prepared baking dish. Carefully pour the creamy spinach and mushroom sauce evenly over the chicken, making sure each piece is nicely coated. Top everything with shredded mozzarella and grated Parmesan cheese for that irresistible melty topping. Slide the dish into your hot oven and bake for 15 to 20 minutes until the cheese is bubbling and golden.
How to Serve Place the cooked chicken breasts in the prepared baking dish

Garnishes
A sprinkle of fresh parsley over the top brightens the presentation and adds a fresh, herbal note that complements the rich, creamy sauce beautifully. If you’re feeling a bit adventurous, a dash of crushed red pepper flakes gives a subtle spicy kick.
Side Dishes
This dish stands well on its own but pairs wonderfully with light sides. Consider a crisp green salad with a tangy vinaigrette to cut through the richness or simple roasted vegetables to keep things easy and wholesome. Cauliflower rice or zucchini noodles are excellent low-carb companions if you’re keeping it keto-friendly.
Creative Ways to Present
For a crowd-pleaser, serve this dish in individual ramekins or mini baking dishes, making each serving feel special. Alternatively, scoop the creamy chicken and vegetable mixture over a bed of mashed cauliflower or a slice of toasted crusty bread for a warm, comforting twist with contrasting textures.
Make Ahead and Storage
Storing Leftovers
After your feast, transfer any leftovers into an airtight container and refrigerate them promptly. They’ll stay fresh and flavorful for 3 to 4 days, making a perfect next-day lunch or dinner.
Freezing
If you want to prep ahead or save for another day, this dish freezes well. Make sure it’s completely cool before packing it into a freezer-safe container. It can be stored for up to 2 months without losing its creamy yumminess.
Reheating
To enjoy leftovers, thaw overnight in the fridge if frozen. Reheat gently in the oven at 350°F (175°C) until warmed through and the cheese gets melty again, about 15 minutes. You can also microwave it, but warming slowly helps keep the sauce from separating.
FAQs
Can I use frozen spinach instead of fresh?
Absolutely! Just be sure to thaw and squeeze out excess water from the frozen spinach before adding it to the skillet. This prevents the sauce from becoming watery and keeps the dish creamy and thick.
What can I substitute for heavy cream?
If heavy cream is not handy, full-fat coconut milk is a great alternative for a slightly different flavor and still rich texture. Alternatively, a blend of cream cheese and milk can work to thicken the sauce nicely.
Is it necessary to cook the chicken before baking?
Yes, cooking the chicken breasts first ensures they stay juicy and develop a nice golden crust. Baking the raw chicken in the sauce alone might leave you with uneven cooking and a less flavorful result.
Can I make this dish dairy-free?
Definitely! Swap the cheeses for dairy-free versions, and use coconut cream instead of heavy cream. The dish will still be delightfully rich with those creamy textures.
How do I prevent the sauce from separating?
Keep the sauce at a gentle simmer and avoid boiling it vigorously. Gradual thickening preserves the creaminess. Also, reheating slowly helps maintain the sauce’s smooth texture without breaking.
Final Thoughts
Give this Chicken, Spinach, and Mushroom Low Carb Oven Dish a try the next time you want a cozy, nourishing meal that’s surprisingly simple to pull together. Remember to place the cooked chicken breasts in the prepared baking dish just as described to get that perfect balance of creamy, savory, and cheesy goodness. I’m confident it’ll become one of your go-to dinners for busy weeknights or weekend treats alike!
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PrintChicken, Spinach, and Mushroom Low Carb Oven Dish
A comforting low-carb oven-baked dish featuring tender chicken breasts smothered in a creamy spinach and mushroom sauce, topped with melted mozzarella and Parmesan cheese. Perfect for a healthy, satisfying dinner that combines fresh vegetables and rich flavors in one easy recipe.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 4 servings 1x
- Category: Main Course
- Method: Baking, Sautéing
- Cuisine: American
- Diet: Low Carb
Ingredients
Chicken and Seasoning
- 4 boneless, skinless chicken breasts
- Salt and pepper, to taste
- 1 tsp dried thyme or Italian seasoning
Vegetables and Sauce
- 2 tbsp olive oil
- 2 cups fresh spinach, chopped
- 1 cup mushrooms, sliced
- 3 cloves garlic, minced
- 1/2 cup heavy cream
- 1/4 cup chicken broth (or vegetable broth)
Cheeses and Garnish
- 1/2 cup shredded mozzarella cheese
- 1/4 cup grated Parmesan cheese
- Fresh parsley, chopped (optional, for garnish)
Instructions
- Preheat Oven: Preheat your oven to 375°F (190°C). Grease a baking dish or line it with parchment paper to prevent sticking.
- Cook Chicken: Heat olive oil in a large skillet over medium heat. Season the chicken breasts with salt, pepper, and dried thyme or Italian seasoning. Cook the chicken for 5-6 minutes per side until golden brown and fully cooked through. Remove from the skillet and set aside.
- Sauté Vegetables: In the same skillet, add minced garlic and sauté for 1 minute until fragrant. Add sliced mushrooms and cook for 5 minutes until softened. Stir in the chopped spinach and cook for an additional 2-3 minutes until wilted.
- Make the Sauce: Pour heavy cream and chicken broth into the skillet with the spinach and mushrooms. Stir gently to combine and bring the mixture to a simmer. Allow it to cook for 3-4 minutes until the sauce slightly thickens.
- Assemble the Dish: Place the cooked chicken breasts in the prepared baking dish. Pour the creamy spinach and mushroom sauce evenly over the chicken. Sprinkle the shredded mozzarella and grated Parmesan cheese on top.
- Bake: Bake in the preheated oven for 15-20 minutes, or until the cheese is melted, bubbly, and lightly golden, and the sauce is heated through.
- Serve: Garnish with freshly chopped parsley if desired, and serve the dish warm for best flavor and texture.
Notes
- For a richer flavor, you can add a teaspoon of garlic powder or onion powder when seasoning the chicken.
- Substitute heavy cream with half-and-half for a lighter version, though the sauce will be less creamy.
- Use fresh herbs like thyme or oregano instead of dried for a more vibrant taste.
- To keep it dairy-free, replace cheeses with a vegan alternative and use coconut cream instead of heavy cream.
- Make sure not to overcook the chicken during the skillet step to ensure it remains juicy after baking.
- Leftovers can be refrigerated for up to 3 days and reheated in the oven or microwave.
Nutrition
- Serving Size: 1 chicken breast with sauce
- Calories: 350 kcal
- Sugar: 2 g
- Sodium: 420 mg
- Fat: 22 g
- Saturated Fat: 10 g
- Unsaturated Fat: 10 g
- Trans Fat: 0 g
- Carbohydrates: 6 g
- Fiber: 2 g
- Protein: 35 g
- Cholesterol: 115 mg
Keywords: chicken, spinach, mushroom, low carb, oven-baked, creamy sauce, healthy dinner, easy recipe