My quiches are totally pastry-less; I use thinly sliced sweet potatoes that bake until tender but crispy, adding a slightly sweet flavor, striking orange color, and whole host of nutrients.
You can be endlessly inventive with vegetable stacks, discovering your own favorite combinations. You want to cut the vegetables about 1/2 inch thick, and then layer twice—any higher than that and your stack is likely to topple.
This is one of Faith’s favorite go-to soup-as-a-meal recipes. She prefers red lentils, simply because she finds them beautiful, but you could use brown lentils if that’s what you have or what you like. As a last step, she uses an immersion blender to thicken the soup, but you don’t have to if you like the texture of the plump cooked lentils as they are.