Bring large pot of water to boil and cook pasta according to package instructions, Drain.
In a large bowl, mix together the Tomato Sauce and the Crushed Tomatoes. (do not drain crushed tomatoes)
Grate Mozzarella Cheese
In a casserole dish, layer up the ingredients, starting with the sauce mixture, then the noodles, butter pats, onion salt and cheese....Repeat this step 2 or 3 times
Bake covered in oven for 45 minutes at 350 degree's
Notes
Use high quality crushed tomatoes. I use Cora brand. If you run out of cheese, you can add a little pre-shredded to the top....I always run out before I get to the top layer!