until fragrant (about 30 seconds), then add mushrooms, thyme, salt, and pepper. Cook until golden and reduced, about 6–8 minutes. Let cool slightly. Mix in shredded mozzarella and Parmesan.
3. Stuff the chicken:
Fill each chicken pocket with the mushroom-cheese mixture. Use toothpicks to secure if needed.
4. Sear the chicken:
In a large oven-safe skillet, heat olive oil over medium-high. Sear chicken breasts for 2–3 minutes per side until golden.
5. Bake to perfection:
Transfer skillet to a preheated oven at 375°F (190°C) and bake for 15–20
