For each 20 pounds of weight your dog has, feed him one-third to one-half pound of ground beef per day. Place the sweet potato pieces on a lined baking sheet and drizzle with oil and season with salt and pepper. A traditional sloppy joe consists of ground beef or pork, onions, garlic powder, tomato sauce, Worcestershire sauce, and sometimes other condiments like ketchup or mustard. The parasite Salmonella can cause vomiting, diarrhea, fever, and lethargy when raw pork is consumed.