Step 1

In large skillet, cook beef and onions over medium heat until browned and crumbly; drain.

Step 2

Combine pasta, broth, milk, ketchup, steak seasoning, and mustard; bring to boil. Reduce heat and simmer 10-15minutes, uncovered, until pasta is tender. Stir in cheese until melted.

Step 3

To serve, garnish with green onions, if desired.