Using canned beans makes this low-fat recipe for enchiladas a snap to prepare. We chose kidney, garbanzo, pinto, and navy beans, but you can use any combination of beans that you like.
For a light entree on a summer night, this dish is just the ticket. Salting and draining the zucchini and tomatoes before baking prevents them from releasing excess moisture as they bake, so the gratin stays firm, not soggy.
We used whole-grain bread to make this sandwich, but the combination of fresh vegetables and cheese also works well tucked inside pita bread or a whole-wheat wrap.