Chicken Spinach & Mushroom Low-Carb Oven Dish

If you’re looking for a comforting, flavorful dinner that fits perfectly into a low-carb or keto lifestyle, this Chicken Spinach & Mushroom Low-Carb Oven Dish is exactly what you need. Creamy, savory, and deeply satisfying, this baked chicken recipe is packed with protein, nutrient-rich vegetables, and bold flavors—without relying on pasta, rice, or starchy fillers.

This dish is ideal for busy weeknights, meal prep, or even casual entertaining. Everything comes together in one baking dish, making cleanup minimal while delivering maximum flavor. Tender chicken breasts are baked in a creamy garlic sauce with earthy mushrooms and vibrant spinach, creating a wholesome meal that feels indulgent but stays low in carbohydrates.

Why You’ll Love This Recipe

Low-carb & keto-friendly: Naturally low in carbohydrates with high protein and healthy fats
One-pan meal: Minimal prep and easy cleanup
Rich and comforting: Creamy without flour or starch
Meal-prep friendly: Stores and reheats beautifully
Customizable: Easy to adapt with different cheeses or seasonings

Ingredients

For the Chicken and Vegetables

4 boneless, skinless chicken breasts (about 1.5 lbs / 700 g)
2 tablespoons olive oil
8 oz (225 g) mushrooms, sliced (button or cremini)
4 cups fresh spinach, loosely packed
4 cloves garlic, minced
1 small onion or shallot, finely chopped (optional but recommended)

For the Creamy Sauce

1 cup heavy cream
½ cup chicken broth
½ cup grated Parmesan cheese
1 teaspoon Dijon mustard
½ teaspoon paprika
½ teaspoon dried thyme (or Italian seasoning)
Salt and freshly ground black pepper, to taste

Optional Toppings

½ cup shredded mozzarella or provolone cheese
Fresh parsley or basil, chopped

Instructions

Step 1: Preheat the Oven

Preheat your oven to 375°F (190°C). Lightly grease a large baking dish with olive oil or cooking spray to prevent sticking.

Step 2: Prepare the Chicken

Pat the chicken breasts dry with paper towels. Season both sides generously with salt, black pepper, and paprika. This step ensures the chicken is flavorful all the way through.

Heat 1 tablespoon of olive oil in a large skillet over medium-high heat. Sear the chicken breasts for about 3–4 minutes per side, just until golden brown. You’re not cooking them fully at this stage—just developing flavor. Transfer the chicken to the prepared baking dish.

Step 3: Sauté the Vegetables

In the same skillet, add the remaining tablespoon of olive oil. Sauté the chopped onion (if using) for 2–3 minutes until softened. Add the sliced mushrooms and cook for about 5 minutes, stirring occasionally, until they release their moisture and turn golden.

Add the minced garlic and cook for 30 seconds until fragrant. Stir in the fresh spinach and cook just until wilted. Remove from heat.

Spread the vegetable mixture evenly over and around the chicken in the baking dish.

Step 4: Make the Creamy Sauce

In a small bowl, whisk together the heavy cream, chicken broth, Parmesan cheese, Dijon mustard, dried thyme, salt, and black pepper. Taste and adjust seasoning if needed.

Pour the sauce evenly over the chicken and vegetables, ensuring everything is well coated.

Step 5: Bake

Cover the baking dish loosely with foil and bake for 20 minutes. Remove the foil, sprinkle mozzarella or provolone cheese on top if using, and return to the oven uncovered.

Bake for an additional 10–15 minutes, or until the chicken is fully cooked (internal temperature reaches 165°F / 74°C) and the sauce is bubbling and slightly thickened.

Step 6: Garnish and Serve

Remove from the oven and let the dish rest for 5 minutes. Garnish with freshly chopped parsley or basil before serving.

Tips for Best Results

Don’t overcook the chicken: Use a meat thermometer for juicy, tender results.
Slice large chicken breasts in half for more even cooking.
Fresh spinach works best, but frozen spinach can be used—just thaw and squeeze out excess liquid.
For extra flavor, add a splash of white wine to the sauce or a pinch of red pepper flakes.

Serving Suggestions

This dish is hearty on its own, but pairs beautifully with low-carb sides such as:

Cauliflower mash
Zucchini noodles
Roasted broccoli or asparagus
Simple green salad with lemon vinaigrette

Storage & Reheating

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently in the oven at 325°F (165°C) or in a skillet over low heat. Add a splash of cream or broth if the sauce thickens too much.

Nutritional Highlights (Approximate Per Serving)

Calories: 420
Protein: 38g
Fat: 28g
Net Carbs: 4–6g

Final Thoughts

This Chicken Spinach & Mushroom Low-Carb Oven Dish proves that healthy eating doesn’t have to be boring. With its creamy texture, savory depth, and nourishing ingredients, it’s a recipe you’ll come back to again and again. Whether you’re following a low-carb lifestyle or simply want a delicious, wholesome dinner, this baked chicken dish delivers comfort and flavor in every bite.