01 -
Preheat oven to 350°F. Cook pasta until al dente.
02 -
Brown ground beef with garlic salt, drain fat. Add marinara and simmer 10 minutes.
03 -
Blend sour cream, cream cheese, and chopped onion until well mixed.
04 -
In 9x13 dish layer: half noodles, meat mixture, sour cream mixture, remaining noodles.
05 -
Top with cheddar cheese and bake for 25 minutes.