Cook pasta according to package directions; set aside.
Stir together mozzarella cheese, ricotta cheese, and next 5 ingredients.
Sauté chopped Canadian bacon and diced onion in a skillet coated with cooking spray over medium heat until onion is tender. Stir into cheese mixture.
Spread 1/2 pasta sauce on bottom of an 11- x 7-inch baking dish coated with cooking spray. Layer with 1/2 noodles and 1/2 pasta sauce; top with half of cheese mixture. Repeat layers once, ending with remaining cheese mixture. Top with remaining 1/2 noodles and remaining pasta sauce.
Bake at 350° for 15 minutes. Sprinkle with remaining mozzarella cheese; bake 5 more minutes or until cheese melts. Let stand 5 minutes.
NOTE: Freeze individual portions as desired. To reheat, bake, covered at 300'' for 1 hour.