Heat a large nonstick skillet over medium heat. Coat pan with cooking spray. Add 1/4 teaspoon salt and spinach; cook 1 minute or until spinach wilts, stirring constantly. Remove spinach from pan; place in a bowl.
Add bacon to pan; cook 3 minutes or until crisp, stirring frequently. Remove bacon from pan, reserving 2 teaspoons drippings in pan; set bacon aside. Add onion to drippings in pan; cook 2 minutes or until tender, stirring frequently. Add wine; cook 1 minute or until liquid is reduced by half. Remove from heat; keep warm.
Cook pasta according to package directions, omitting salt and fat. Drain well, reserving 1 tablespoon cooking liquid. Immediately add pasta and the reserved cooking liquid to onion mixture in skillet. Add spinach and bacon; stir well to combine. Place skillet over low heat.
Combine remaining 1/4 teaspoon salt, cheese, pepper, egg, and egg white, stirring with a whisk. Add to pasta mixture, tossing well to coat. Cook 1 minute. Remove from heat. Sprinkle with parsley. Serve immediately.