It's summer. You're hot and you're hungry for a cool summer lunch. Enter the classic tomato sandwich. Can you really make a sandwich with tomato slices as the star? You bet. Think about something ...

To make a tomato sandwich inspired by classic ratatouille flavors, roast or grill slabs of eggplant, zucchini, and summer squash. If you don't have all three vegetables at the ready, any ...