Combine Contadina Spaghetti Sauce and heavy cream; blend well. Pour creamy sauce over cooked ziti pasta; mix well and set aside. Combine ricotta cheese, beaten eggs, grated parmesan cheese and basil leaves; mix well.
In each of two well-sprayed full steam table pans, layer 4 pounds ziti mixture and 8 ounces ricotta mixture. Repeat. Top each pan with 1 pound mozzarella cheese.
Bake in 350 degrees F. conventional oven 30-35 minutes, or 300 degrees Convection oven 20-25 minutes.