This is my go-to Mushroom Stuffed Chicken Breast recipe—a family favorite that’s easy to make and packed with flavor. Tender chicken breasts are filled with a savory mix of mushrooms, garlic, herbs, spinach, and melty cheese, then baked until golden and juicy. It’s a wholesome, low-carb dish that delivers restaurant-quality results, perfect for busy weeknights or meal prepping.
Why You’ll Love This Recipe
- Weeknight-Friendly: Ready in under an hour with minimal prep.
- Low-Carb: No breadcrumbs or starches, making it keto-friendly.
- High-Protein: A satisfying, protein-rich meal.
- Simple Ingredients: Uses everyday items you likely already have.
- Flavor-Packed: Mushrooms, garlic, and cheese give it that crave-worthy richness.
Ingredients
- 2 chicken breasts (about 220g / 7 oz each, skinless and boneless)
- ¾ teaspoon salt
- ¼ teaspoon black pepper
- 2 tablespoons unsalted butter (30g)
- 7 oz mushrooms, sliced (about 2 cups / 200g)
- 2 cloves garlic, minced
- ½ teaspoon thyme leaves
- 2 cups fresh baby spinach
- 3 oz mozzarella cheese, sliced (80g)
- 1 tablespoon olive oil
Ingredient Substitutions
- Mushrooms: Cremini, shiitake, or portobello mushrooms all work well.
- Cheese: Substitute mozzarella with provolone, Swiss, or Gruyère.
- Greens: Use kale or chard instead of spinach (cook longer to soften).
- Herbs: Replace fresh thyme with ¼ tsp dried or use rosemary or sage.
- Butter: Swap for olive oil, ghee, or avocado oil.
How to Make Mushroom Stuffed Chicken Breast
Step 1: Preheat Oven & Prepare Chicken
Preheat oven to 200°C / 390°F (180°C fan-forced). Slice a deep pocket into each chicken breast and season inside and out with half the salt and pepper.
Step 2: Cook Mushroom Filling
In an oven-safe skillet, melt butter over high heat. Add mushrooms and cook for 3 minutes. Stir in garlic, thyme, and remaining salt and pepper. Cook for another 2 minutes until golden. Add spinach and stir until wilted.
Step 3: Stuff the Chicken
Spoon the mushroom mixture into the chicken pockets. Top with mozzarella. Secure with toothpicks (partially sealed is fine).
Step 4: Sear the Chicken
Wipe the skillet and heat olive oil over medium-high. Sear the chicken for about 1.5 minutes per side until golden.
Step 5: Bake
Transfer skillet to oven and bake for 15 minutes or until internal temperature reaches 65°C / 149°F (check chicken, not filling).
Step 6: Rest and Serve
Remove from oven, transfer chicken to a plate, and cover loosely with foil. Rest for 5 minutes. Serve warm.
What to Serve With It
- Starches: Creamy mashed potatoes, rice, or risotto.
- Veggies: Roasted asparagus, broccoli, or a fresh green salad with balsamic dressing.
Storage Tips
- Refrigerate: Store in an airtight container up to 3 days.
- Freeze: Wrap individually and freeze for up to 3 months.
- Reheat: Bake at 175°C / 350°F for 15-20 minutes until heated through.
Nutrition (Estimated)
- Calories: 800-900
- Protein: 85-95g
- Fat: 50-60g
- Carbs: 15-20g
This Healthy Mushroom Stuffed Chicken Breast is cozy, comforting, and packed with flavor. Make it once, and it might just become a regular in your weekly dinner rotation!
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