Makes 2.

Preheat panini press on high.

Lightly brush one side of each slice of bread with olive oil. Place two slices on work surface oiled side down. Layer with cheese and tomato. Season lightly with salt and pepper. Cut basil leaves into strips and sprinkle atop tomato. If desired, place slice chicken breasts atop tomato and top with the other slices of bread, oiled side up.

Place the sandwiches on the preheated grill plates. Close the panini press. Press lightly for 30 seconds and bake for 3 to 4 minutes until bread is grill marked and crispy, and cheese is melted. Serve hot.