Season both the inside and outside of the chicken with salt, pepper, and Lemon Pepper seasoning.
Fill each chicken breast with 3 slices of tomato, 2 pieces of mozzarella, and several basil leaves. Fold to close.
Heat 1 tbsp olive oil in a skillet over high heat until it smokes.
Sear the stuffed chicken for 2 minutes per side.
Transfer the skillet to the oven and bake for 10 minutes.
Remove from the oven and let the chicken rest for 5 minutes before serving.