Cook macaroni according to package directions until just less than al dente. Meanwhile, in a large skillet over medium-high heat, brown and crumble hamburger with onion and garlic until no longer pink. Drain fat and return to stove and add the remaining ingredients except for the cheese.
Pre-heat oven to 375º. Drain macaroni, add to beef mixture, stir to combine, cover and simmer for 15 minutes.
Transfer to 13x9x2 baking dish coated with non-stick spray. Cover and bake until bubbly, about 25 minutes. Uncover, sprinkle with cheese and bake 5-8 minutes until cheese is melted.