Stir to mix, then add beef broth, tomato sauce, milk and the pasta.
Bring to a boil and turn the heat down to a simmer.
Cover with a lid and cook for 12-15 minutes or until the pasta is cooked.
Stir the pot occasionally to make sure the pasta doesn't stick.
Add the cheese when the pasta is ready and the liquid has been absorbed.
Turn off the heat and cover to let the cheese melt.
Storage
Store any leftovers in a covered container in the refrigerator for up to five days.
Reheating Leftovers
To reheat, just add a splash of water and microwave on high for 1–2 minutes until hot. Want it extra cheesy? Toss in a little fresh cheese before serving.
Notes
Tips for success
Be sure to stir the beef and macaroni occasionally while cooking to prevent the macaroni from sticking.
Add additional broth or water in the end if the casserole is too thick.