Ratatouille (rat-tuh-TOO-ee) is a classic French stew with fresh vegetables. Today, we make our own version that includes tuna. This is a simple yet delicious meal you can whip up at home in no time. It’s a great way to use your stocked up canned tuna from the pantry. Add some eggplants, sweet pepper, tomatoes and readily available spices and you are good to go.