Here is a recipe for a tuna and tomato cake that will be perfect as an appetizer when cut into pieces or as an entrée served in slices with salad and homemade vinaigrette. Made with grated gruyère cheese, canned tuna, tomato paste, and olive oil, try this easy and quick savory cake without delay. Source: https://www.cuisineaz.com/recettes/cake-au-thon-et-a-la-tomate-44399.aspx