Create a delicious and cheesy veggie sandwich by making an eggplant and mozzarella panini with the help of a food processor. Slice eggplant into thin rounds using the food processor, then grill or roast them until tender. Spread marinara sauce on two slices of bread and layer the grilled eggplant, fresh mozzarella cheese, and fresh basil leaves in between. Grill the sandwich in a panini press until the cheese is melted and the bread is crispy. This sandwich is a flavorful twist on a classic Italian dish.