Preheat panini press. Thinly slice apples.

Use a pastry brush to brush one side of the bread with olive oil, or spray the bread with cooking spray.

Spread mustard on the other side of the bread.

Lay one slice of bread on a panini press or pan (mustard side up). Layer with sliced cheese and sliced apples. Top with a second slice of bread, with the olive oil side on the outside. If you don't have a panini press, cook in a hot skillet, flipping halfway through.

Serve with grapes, carrot sticks and pepper slices.