Canned beans can be eaten directly from the can without additional cooking since they are precooked. However, before enjoying them as is—or if you decide to cook them—definitely rinse them off with cool water. This will make them taste better plus you'll eliminate some of the oligosaccharides that might be present in the canning liquid. Use canned beans in salads, dips, and sandwiches or eat as is. Of course, as we recommend for all foods, choose organic whenever possible; certified organic canned beans (notably those in cans that don't have BPA-containing liners) are your best bet when it comes to optimal nourishment and minimal possible contaminants.