01 -
Wilt fresh spinach in a pan until just softened, then set aside on paper towels to drain excess moisture.
02 -
Slice a deep pocket into each chicken breast, being careful not to cut through completely. Season the inside of each pocket with salt and pepper.
03 -
Fill each chicken pocket with a generous spoonful of wilted spinach, chopped roasted red peppers, and shredded mozzarella cheese. Secure pockets with toothpicks if necessary.
04 -
Heat olive oil in an oven-safe skillet over medium-high heat. Sear chicken breasts on both sides until golden brown, about 3 minutes per side.
05 -
Transfer skillet to a preheated oven at 375°F (190°C). Bake for 15 to 20 minutes until chicken is cooked through and cheese is melted and bubbly.
06 -
Remove chicken from oven and let rest a few minutes. Spoon pan juices over the top before serving to enhance flavor.