A classic dish favorite among many Mexican children, meatballs are also liked by elderly people—perhaps because, being made from ground meat (which, curiously, is not frequently used in homemade Mexican food), they are easy to cut, chew, and digest. The meat you choose should have a little fat to season the sauce, but not too much to avoid making a greasy stew. Opt for ground meat that is about 85% to 90% lean and 15% to 10% fat for the best results. I like to use half beef and half pork, but you can choose the type of meat you prefer or what is on sale at the time of buying the ingredients. (Also try the delicious meatball soup and fish meatballs.)