At about 50¢ or less for a ½-cup serving of canned beans, you just can’t go wrong. They’re packed with fiber and protein. We always keep cans in the cupboard and whip them out to toss with salads, pasta, stir-fries, in soups or for an easy dip. Dried beans are even less expensive than canned. Cook a big batch then freeze extras for when you’re ready to use them in a recipe.