What lots of people seem to forget is bean soup. I have a simple recipe.
First, some beans. I like a colorful soup, so I often choose black beans (which I just love), soy or anything white, mung (green), and azuki or anything red. I add cumin, onion, garlic, and bell pepper. Pressure cook or boil for the amount of time required by the longest cooking bean with enough water to cover. Eat with some nice, crusty bread (this used to be called "sops" back when peasants couldn't afford meat and ate a lot of beans and other stews). I'm pretty sure white bread has almost as much protein as whole grain, just less fiber and fat. So a baguette isn't evil.