Then repeat layers starting with noodles until pan is full. Usually 2 or 3 layers. Cover with foil. If baking in a conventional oven, pre-heat oven to 375 degrees. Then turn oven to 350 degrees after placing lasagna inside.
Lasagna improves with age.
If refrigerated for 24 to 48 hours, flavors will intensify. If not using hot Italian sausage, add tsp.