In a pan over medium heat bring elbow macaroni, 2 cups milk, salt, pepper, garlic powder, and onion powder to a boil, stirring occasionally; about 7-10 minutes until almost all of the milk is gone
Stir in cheese and another cup of milk, bringing to a boil, stirring occasionally. Lower to a simmer after 5 minutes.
Stir in broccoli and let simmer for another 5 minutes, stirring occasionally.