Heat oven to 450°F. In medium bowl, mix milk and egg white. Stir in turkey, bread crumbs, poultry seasoning and pepper. Shape into 1-inch balls. Place in ungreased 15x10x1-inch pan. Bake about 10 minutes or until lightly browned and thoroughly cooked.
Meanwhile, in 4-quart saucepan, heat water, pasta sauce, bell pepper and mushrooms to boiling. Stir in pasta. Reduce heat; simmer about 15 minutes or until pasta is of desired doneness, stirring occasionally. Stir in meatballs; heat until hot. Serve sprinkled with Parmesan cheese.