Boil and cook macaroni until tender.

While macaroni is cooking, cook ground beef along with onion.

Stir and cook until beef is browned and onion is soft.

Add in garlic during last couple of minutes of cooking (so it doesn't burn).

Drain excess grease from beef and put back into pot

After macaroni is cooked, drain.

Stir macaroni and remaining ingredients (minus the cheese) into beef mixture.

Heat to boiling, stir occasionally, then reduce heat and simmer covered for about 15-20 minutes.

Make sure to give it a taste test at this point. I usually find I need to season with a bit of salt.

Then serve and sprinkle each serving with shredded cheese.