01 -
Preheat the oven to 375°F, then stir together the cheese mixture.
02 -
Brown the sausage and onions together. Add garlic at the end. Boil the pasta, leaving it just a bit undercooked.
03 -
Toss the pasta with marinara sauce and the cooked sausage mixture.
04 -
Start with half of the pasta mix, then spread the cheese layer. Add the rest of the pasta, and sprinkle mozzarella over the top.
05 -
Bake covered for 30 minutes. Take the cover off and broil until the top is golden brown.