Preheat oven to 350 degrees.

Cook pasta according to box.
Lightly oil a deep dish (so we can make a few layers)
Spread 1/4 of the sauce (the paste and sauce mixed together) on the bottom of the dish.
Put half of the pasta on top. Using half of the cottage cheese, put spoonfuls of it on top. Sprinkle half the mozzarella on top. Spread a 1/3 of the tomato sauce on all of it. Put the rest of the pasta on top. Then the rest of the cottage cheese in spoonfuls. Then sprinkle the other half of the mozzarella.
Cover with the rest of the tomato sauce and sprinkle all of the parm on top.

Bake on lower middle rack for 30 min.