Preheat oven to 375°F
This recipe makes 5 layers of pasta, In a large rectangular baking dish with handles, begin by adding 1 cup of the marinara sauce (without sausage) to the bottom of the pan, then place one layer of pasta over the sauce.
With a spatula, spread a quarter of the cheese mixture (about 1.5 cups) over the pasta noodles; then cover the cheese mixture with one quarter of the Marinara with sausage sauce (about 1 cup). Add another layer of noodles. Continue in this pattern for an 3 additional rounds.
On the fifth and last layer of pasta noodles, add the remaining 1.5 cups of marinara sauce (without sausage), cover with tin foil and bake for 1 hour.
Uncover and add the shredded Mozzarelia cheese. Bake an additional 15 minutes until cheese is melted and slightly golden. Let cool for 15 minutes before cutting and serving.