If you’re craving a dish that perfectly balances wholesome ingredients with comfort food vibes, the Chicken, Spinach, and Mushroom Low-Carb Oven Bake Recipe is an absolute kitchen winner. This hearty yet light casserole combines tender chicken pieces, vibrant spinach, and earthy mushrooms all baked to cheesy, golden perfection. It’s one of those meals that feels indulgent without the carb overload, making it a fantastic choice for anyone who loves big flavors and easy, fuss-free cooking. Plus, it’s a great way to sneak in some greens without sacrificing the deliciousness we all crave.

Ingredients You’ll Need
This recipe is a shining example of how a handful of simple, fresh ingredients can come together to create a dish full of flavor, texture, and visual appeal. Each component plays a vital role, from the creamy cheese that ties everything together to the herbs that bring warmth and depth.
- 2 large chicken breasts: Cut into bite-sized pieces for even cooking and tender bites.
- 3 cups fresh spinach: Adds color, nutrition, and a lovely mild flavor when wilted.
- 2 cups mushrooms: Sliced for a rich, earthy taste that perfectly complements the chicken.
- 1 cup shredded mozzarella cheese: Melts beautifully to create a gooey, cheesy topping.
- 1/2 cup grated Parmesan cheese: Brings a sharp, nutty flavor that elevates the dish.
- 1/2 cup heavy cream: Adds a luscious creaminess that keeps everything moist and indulgent.
- 2 cloves garlic: Minced to infuse the dish with aromatic depth.
- 1 small onion: Finely chopped to add sweetness and texture.
- 2 tablespoons olive oil: For sautéing and developing those rich flavors.
- 1 teaspoon dried oregano: Offers a classic herbaceous note that complements poultry.
- 1 teaspoon dried thyme: Adds subtle earthiness to balance the richness.
- Salt and pepper to taste: Essential seasonings that bring all the flavors together beautifully.
How to Make Chicken, Spinach, and Mushroom Low-Carb Oven Bake Recipe
Step 1: Prepare and Sauté the Aromatics
Start by preheating your oven to 375°F (190°C) so it’s ready when you are. Then, warm the olive oil in a large skillet over medium heat. Toss in the finely chopped onion and minced garlic, stirring until they become translucent and release their sweet, fragrant aroma—this usually takes about 3 to 4 minutes. This step is where the flavor foundation of the dish is built.
Step 2: Cook the Mushrooms
Next, add the sliced mushrooms to your skillet. Let them cook down for 5 to 6 minutes, stirring occasionally, until they soften and take on a lovely light brown color. This deepens their natural umami flavor, which is essential for the earthy undertone of this bake.
Step 3: Wilt the Spinach
Now, toss in the chopped spinach and stir it through the mushroom mixture. Cook just until the spinach wilts, which should only take about 2 minutes. This adds a fresh green touch and a slight sweetness that contrasts beautifully with the savory elements.
Step 4: Combine Chicken and Seasonings
Remove the skillet from heat and transfer the sautéed veggies to a large mixing bowl. Add in the bite-sized chicken pieces, then season everything with oregano, thyme, salt, and pepper. Stir everything gently so the chicken is coated evenly with those delicious flavors.
Step 5: Mix with Cream and Cheese
Pour the heavy cream into your bowl along with half of the shredded mozzarella. Carefully stir the mixture to combine all ingredients without breaking up the chicken pieces. This creamy blend will ensure the bake stays moist and luscious throughout cooking.
Step 6: Assemble and Bake
Transfer the creamy chicken and vegetable mixture into a greased baking dish, spreading it out evenly. Sprinkle the remaining mozzarella and all the Parmesan cheese evenly over the top, creating a golden, bubbling crust once baked. Place it uncovered in the oven and bake for 25 to 30 minutes, until the chicken is fully cooked and the cheese turns beautifully bubbly and golden brown.
Step 7: Let It Rest and Serve
After removing your masterpiece from the oven, let it rest for a few minutes. This helps the flavors to settle and makes it safer and easier to serve. Plus, waiting just a little makes every bite even more satisfying!
How to Serve Chicken, Spinach, and Mushroom Low-Carb Oven Bake Recipe

Garnishes
Fresh herbs like chopped parsley or basil work wonders sprinkled over the top. They add a refreshing color contrast and a burst of flavor that complements the richness of the bake. A light drizzle of high-quality olive oil can also add a subtle shine and richness.
Side Dishes
This dish shines on its own but pairs wonderfully with simple, low-carb sides. Think a crisp green salad tossed with lemon vinaigrette or some roasted cauliflower rice for extra texture. These sides keep things light and fresh, balancing the creamy oven bake.
Creative Ways to Present
Try serving this in individual ramekins for a classy presentation perfect for entertaining. You can also sprinkle some toasted pine nuts or walnuts on top before baking to add a lovely crunch that surprises the palate with every bite.
Make Ahead and Storage
Storing Leftovers
This oven bake keeps beautifully in an airtight container in the fridge for up to 3 days. The flavors actually deepen overnight, so leftovers can be even more delicious.
Freezing
If you want to save some for later, you can freeze the cooled leftovers in a freezer-safe container for up to 2 months. Just be sure to thaw completely in the fridge before reheating to ensure even warming.
Reheating
The best way to reheat is in the oven at 350°F (175°C) for about 15 to 20 minutes until warmed through, which helps keep the texture nice and the cheese gooey. Microwaving works too if you’re in a hurry but might make the cheese a little rubbery.
FAQs
Can I use other types of cheese in this recipe?
Absolutely! While mozzarella and Parmesan create a classic combo, you can swap mozzarella for provolone or gouda, and Parmesan for pecorino for a sharper bite. Just be sure to choose cheeses that melt well for that creamy, bubbly top.
Is this dish suitable for meal prepping?
Yes, this recipe is great for meal prep. It stores well in the fridge and freezes nicely, making it easy to enjoy a wholesome, home-cooked meal on busy days without extra effort.
Can I substitute chicken breasts with thighs?
Definitely! Chicken thighs will add a bit more moisture and richness to the bake. Just make sure to cut them into similar-sized pieces and adjust cooking time slightly if needed.
What can I do to make the recipe dairy-free?
You can swap heavy cream for coconut cream and use dairy-free cheese alternatives for a creamy, comforting version that suits dairy-free diets while staying low carb.
How can I add more veggies to the Chicken, Spinach, and Mushroom Low-Carb Oven Bake Recipe?
Feel free to toss in other low-carb vegetables like zucchini, bell peppers, or broccoli florets. Just sauté or steam them lightly before mixing into the bake so everything cooks evenly and has great texture.
Final Thoughts
This Chicken, Spinach, and Mushroom Low-Carb Oven Bake Recipe has become a beloved staple for anyone wanting a meal that’s easy to prepare, satisfying, and perfectly balanced in flavor and nutrition. Once you try it, you might just find yourself reaching for this comforting dish time and time again. So, gather your ingredients, preheat that oven, and get ready to enjoy a deliciously cheesy, wholesome dinner that feels like a warm hug on a plate.
Print
Chicken, Spinach, and Mushroom Low-Carb Oven Bake Recipe
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Baking
- Cuisine: American
- Diet: Low Carb
Description
This low-carb oven-baked chicken dish combines tender chicken breasts with sautéed spinach and mushrooms, creamy heavy cream, and a blend of mozzarella and Parmesan cheeses. It’s a flavorful, comforting meal perfect for a healthy dinner that comes together in just 45 minutes.
Ingredients
Protein & Dairy
- 2 large chicken breasts, cut into bite-sized pieces
- 1 cup shredded mozzarella cheese
- 1/2 cup grated Parmesan cheese
- 1/2 cup heavy cream
Vegetables
- 3 cups fresh spinach, chopped
- 2 cups mushrooms, sliced
- 2 cloves garlic, minced
- 1 small onion, finely chopped
Pantry Items & Spices
- 2 tablespoons olive oil
- 1 teaspoon dried oregano
- 1 teaspoon dried thyme
- Salt and pepper to taste
Instructions
- Preheat Oven: Preheat your oven to 375°F (190°C) to prepare for baking the dish.
- Sauté Onion and Garlic: In a large skillet, heat olive oil over medium heat. Add the finely chopped onion and minced garlic, cooking for about 3-4 minutes until translucent and fragrant.
- Cook Mushrooms: Add the sliced mushrooms to the skillet and cook for 5-6 minutes until they are softened and lightly browned, enhancing their flavor.
- Wilt Spinach: Stir in the chopped spinach and cook for an additional 2 minutes until the spinach is wilted. Remove the skillet from heat to stop cooking.
- Combine Ingredients: Transfer the sautéed vegetables into a large mixing bowl. Add the bite-sized chicken pieces, then season with dried oregano, dried thyme, salt, and pepper.
- Add Cream and Cheese: Pour in the heavy cream and add half of the shredded mozzarella cheese. Stir gently to coat all ingredients evenly.
- Prepare for Baking: Transfer the combined mixture to a greased baking dish, spreading it out evenly. Sprinkle the remaining mozzarella and the Parmesan cheese evenly over the top.
- Bake: Place the dish into the preheated oven and bake uncovered for 25-30 minutes, or until the chicken is fully cooked through and the cheese on top is bubbly and golden brown.
- Serve: Let the casserole rest and cool slightly for a few minutes before serving to allow it to set and for easier portioning.
Notes
- You can substitute fresh spinach with frozen spinach, but be sure to thaw and drain excess water before using.
- Use a meat thermometer to ensure chicken reaches an internal temperature of 165°F (74°C) for safe consumption.
- For extra flavor, consider adding a pinch of red pepper flakes when sautéing the garlic and onions.
- This dish pairs well with a simple side salad or steamed low-carb vegetables.
- Leftovers can be stored in an airtight container in the refrigerator for up to 3 days.

