While beans are simmering, brown ground beef and stew meat in a 4-quart saucepan (start the ground beef first, so there is some fat in the pan to keep the stew meat from sticking). When meat is browned, add the onion and green pepper. Cook until the onion is translucent. Drain off any excess fat. Add garlic, tomatoes, and spices. Simmer until beans are ready. Add beans and water, as needed. Cook until beans are desired texture. Adjust seasonings if needed.