3 hr 0 min — Hard — American
Sweet heirloom tomatoes, still warm from the summer sun, are the undisputed stars of this savory Southern classic. You'll layer them into a flaky, homemade crust alongside tender sautéed onions and fresh herbs. A rich topping of mayonnaise, Gruyère, and Parmigiano-Reggiano melts into a golden, bubbly finish that binds it all together. It's a comforting, sliceable dish that works beautifully for a relaxed weekend brunch or a light dinner.