1. Dice the beef and pork into small squares. Combine the mayonaise and rib sauce together, letting it sit for twenty minutes minimum.
2. When your meat is ready, get a medium sized saucepan and put onto high heat. Add the meat first, letting it cook for ten minutes, then adding the diced tomatoes, onion and mushrooms together. After five minutes, lower the heat to medium and cook for fifteen minutes or until all of the ingredients are thoroughly cooked.