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Cheesy Garlic Butter Mushroom Stuffed Chicken

This cozy and indulgent stuffed chicken features garlic butter, sautéed mushrooms, and gooey cheese, making it perfect for family dinners or festive occasions.
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Prep Time 20 minutes
Cook Time 25 minutes
Total Time 45 minutes
Servings: 4 servings
Course: Dinner, Main Course
Cuisine: American, Comfort Food
Calories: 400
Ingredients Method Notes

Ingredients
  

For the Chicken
  • 4 pieces boneless, skinless chicken breasts (about 1.5 pounds) butterfly each for a pocket; use thin-cut for faster cooking.
  • 1 tablespoon olive oil for searing chicken.
For the Filling
  • 8 ounces cremini or button mushrooms, finely chopped swap with shiitake for an intense flavor.
  • 3 tablespoons unsalted butter, divided or use olive oil to lighten.
  • 3 cloves garlic, minced shallots are a great swap for milder sweetness.
  • 1 cup shredded mozzarella cheese try provolone or fontina for a different melt and flavor.
  • 1/2 cup grated Parmesan cheese or Pecorino Romano for a saltier punch.
  • 1 tablespoon fresh parsley, chopped reserve a bit for garnish.
  • 1/2 teaspoon dried thyme or 1 teaspoon fresh thyme leaves.
  • to taste Salt and freshly ground black pepper
  • 1/2 cup breadcrumbs (Panko for extra crunch) — optional for a crispy top.
For Serving
  • 1 piece lemon wedges for serving (optional).

Method
 

Preparation
  1. Preheat your oven to 400°F (200°C). Line a baking dish with parchment or lightly grease it.
  2. Pat the chicken dry and butterfly each breast by cutting horizontally, leaving one side attached to make a pocket.
  3. Season inside and out with salt and pepper.
Cook the Filling
  1. Heat 2 tablespoons of butter in a skillet over medium heat.
  2. Add minced garlic and let it sizzle until fragrant — about 30 seconds.
  3. Add chopped mushrooms and thyme to the skillet. Sauté until the mushrooms release moisture and become golden, about 6–8 minutes.
  4. Stir in the cheeses and parsley off the heat. Taste and adjust seasoning.
Stuffing and Cooking the Chicken
  1. Spoon the mushroom-cheese mixture into each chicken pocket, pressing gently.
  2. Heat olive oil in a large ovenproof skillet over medium-high heat. Sear the stuffed breasts 2 minutes per side until golden.
  3. Transfer the skillet to the preheated oven and bake for 12–15 minutes until a thermometer reads 165°F (74°C) in the thickest part.
  4. Remove from oven and let rest for 5 minutes before serving.
  5. Finish with a pat of butter and a squeeze of lemon if desired.

Notes

Refrigerate leftovers in an airtight container for up to 3 days. To reheat, place in a 350°F (175°C) oven covered with foil for 10–15 minutes or microwave on medium power until warmed through.