Gather all the ingredients you need.
Bring a pot to boil with salt. Add macaroni noodles. Follow directions on the package for cooking times.
Open the mushrooms and corn. Set aside to use later.
Preheat Oven to 400.
In a large frying pan or pot. Add ground beef and break up the meat with a spatula. Cook the ground beef until browned.
Drain fat from the ground beef and then return to the stove.
Now add mushrooms, corn, and minced garlic. Mix everything together.
Add pasta sauce and water. Mix all the ingredients. Cover with a lid and simmer for 3 minutes. Taste the sauce now and add additional salt and pepper according to your taste. Here you can also add additional seasonings like Italian seasoning or garlic powder.
Remove from the heat and add 1/2 cup of cheddar cheese and stir around.
Grease a baking dish and pour your ingredients into it. Top with the rest of the cheese and bake covered for 10 minutes at 400. After that time, uncover the casserole and switch to broil for 2 minutes.
Fill a plate with this hamburger casserole. Add additional salt if needed or hot sauce. Enjoy with a delicious side dish like garlic bread or salad.