Heat oven to 350. Spray a lg baking dish w/ cooking spray. Cook pasta as directed, drain. In lg bowl, combine ricotta cheese, 1/4 cup parmesan cheese, mozzarella cheese, egg yolk, parsley, oregano, crab, salt, pepper and cayenne pepper.
Fill each canneloni w/ some of the crab mix and place in baking dish. Sprinkle canneloni w/ remaining parmesan cheese and paprika. Bake 15-20 min, or until bubbly.