01 -
Boil water with salt, toss in the pasta, and cook following the packaging. Drain, then put aside.
02 -
Brown ground beef after sautéing the onion in some olive oil. Stir in garlic, let it cook through, pour off grease, then season.
03 -
Warm heavy cream slowly in a saucepan. Stir in mozzarella and cheddar, letting it melt until smooth. Add seasoning if needed.
04 -
In a baking pan, mix the cooked pasta, beef, cream mixture, ketchup, and mustard. Sprinkle some cheese over the top and bake at 375°F for 20 minutes until bubbly.