Cowboy Macaroni

1 . Stage

Preheat the oven to 450 degrees F (220 degrees C).

2 . Stage

Bring a large pot of lightly salted water to a boil. Cook macaroni in the boiling water, stirring occasionally, until tender yet firm to the bite, about 8 minutes.

3 . Stage

While the macaroni is cooking, brown ground beef and onion in a skillet over medium heat until beef is browned and crumbly, 7 to 10 minutes. Drain excess grease.

4 . Stage

Drain macaroni; do not rinse. Return to the pot and add butter, milk, and both packages of cheese sauce mix. Stir until well combined.

5 . Stage

Combine macaroni and cheese, ground beef mixture, undrained corn, tomato sauce, and tomato paste in a 2-quart casserole dish; mix well.

6 . Stage

Bake in the preheated oven until heated through, 20 to 25 minutes. Top with grated Parmesan cheese.