Cook lasagna noodles as directed on box. Drain and set aside. I put mine on wax paper to cool.
Mix ricotta and mozzarella together.
Brown and drain meat, onion and garlic.
In a large saucepan, cook tomatoes, paste, pepper, sugar, water, bay leaf and baking soda. Bring to a boil uncovered. Reduce to a simmer and cook for 1 hour and 15 minutes. Remove the bay leaf. Add the meat mixture to the sauce.
Preheat oven to 325F.
Coat the bottom of a 9 X 13 baking dish with some sauce to coat.
Layer noodles (3), then 1/3 cheese mixture, then 1/4 sauce. Repeat layers twice. End with noodles on top. Cover with remaining sauce and sprinkle with Parmesan cheese.
Cover with foil and bake for 45 minutes to an hour.