1. Brown ground beef. Meanwhile cook macaroni until done. 2. Add pizza sauce to browned beef. 3. Drain pasta and add milk. 4. Mix pasta with milk and ground beef mixture together. 5. Put in 9 X 13 casserole dish. Top with Mozzarella cheese and pepperoni. 6. Bake at 375° for 20-30 minutes until hot and bubbly.