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Mushroom Stuffed Chicken Breast

Mushroom stuffed chicken breast on white plate with melted mozzarella and golden seared exterior

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Tender chicken breasts filled with savory mushrooms, herbs, cheese, and garlic, baked until golden brown. Restaurant-quality results at home!

Ingredients

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  • 2 boneless, skinless chicken breasts (7 oz each)
  • 3/4 teaspoon salt
  • 1/4 teaspoon black pepper
  • 2 tablespoons unsalted butter
  • 7 oz mushrooms, sliced
  • 3 oz mozzarella cheese, sliced (low-moisture part-skim)
  • 2 cloves garlic, freshly minced
  • 1/2 teaspoon thyme leaves
  • 2 cups fresh baby spinach
  • 1 tablespoon olive oil

Instructions

  1. Preheat oven to 200°C/390°F (or 180°C/356°F fan-forced). Cut a pocket into each chicken breast without cutting all the way through. Pat dry and season inside and outside with half the salt and pepper.
  2. Melt butter in 10-12 inch oven-safe skillet over high heat. Add mushrooms and cook 3 minutes until golden. Add garlic, thyme, remaining salt and pepper. Cook 2 minutes. Add spinach and stir until wilted, about 30 seconds. Remove from heat.
  3. Stuff mushroom mixture into chicken breast pockets. Top with cheese slices. Seal openings with 2-3 toothpicks.
  4. Wipe skillet clean. Heat olive oil over medium-high heat. Sear stuffed chicken breasts 1.5 minutes per side until golden.
  5. Transfer skillet to oven. Bake 15 minutes or until internal temperature reaches 74°C/165°F in the chicken flesh, avoiding the filling.
  6. Remove toothpicks. Place on plate, cover loosely with foil. Rest 5-7 minutes before serving.

Notes

  • Cut pocket 3-4 inches wide on the side. Pat chicken completely dry before seasoning for best sear.
  • Use cremini or white button mushrooms. If skillet is smaller than 10 inches, cook mushrooms in batches.
  • Fresh mozzarella melts beautifully. Insert thermometer into thickest part from the side, avoiding cheese filling.
  • Store in airtight container up to 3 days refrigerated or 3 months frozen. Reheat at 175°C/350°F until 74°C/165°F.

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