In a large pot brown ground beef and Italian Sausage. Saute onions till tender. Drain. Add Tomatoes, Tomato paste, tomato sauce, water, sugar, and all seasonings. Simmer over low heat for 2-3 hours until reduced down and sauce is thick, rich and caramelized.
Last 30 minutes of sauce cook time, bring a large pot of water to boil and add lasagna noodles one at a time, so as not to break them. Cook for 8 minutes or until tender. Drain and let set in cool water. Grate cheese.
In a 9 x 13 casserole dish, layer noodles, ricotta cheese, mozzarella cheese, and sauce. Repeat layers again, noodles, ricotta cheese, mozzarella cheese, and sauce. Add one more layer of noodles, ricotta cheese, mozzarella cheese and meat sauce. Sprinkle with Parmesan Cheese.
Bake in a 350 degree oven for 30-40 minutes until bubbly and cheese is melted.
Notes
The cook time includes the simmer time for the sauce to reduce and caramelize. Actual cook time for Lasagna is 40 minutes. Also, I place my pan of lasagna on a baking sheet just "in case" the sauce bubbles over. Less clean up!