A good salad is all about each flavor combining and contrasting with the others. Here, Meyer lemons perfume shrimp sauteed in oil spiked with habanero pepper; mellow white beans temper the spiciness. Peppery arugula adds another layer of flavor.
Different kinds of beans cook at different rates, so it's best to prepare them in separate pans (working in batches if necessary). The salad can be made with just a few types instead of all five, as long as the total amount of dried beans still measures 2 1/2 cups.
Intense heat concentrates the pumpkin's sugars, bringing out its natural sweetness -- so you can enjoy its rich, dense flesh as you spoon out your stew. White beans, red pearl onions, baby peas, and turkey sausage make up the deep-flavored mix.