1Spray 12-inch skillet with cooking spray; heat over medium-high heat. Add turkey and onion; cook 4 minutes, stirring frequently, until turkey is thoroughly cooked and onion is tender.
2In food processor or blender, place cottage cheese. Cover; process until smooth.
3Add spinach and 3 cups of the pasta sauce to turkey mixture. Cook 1 minute, stirring constantly, until thoroughly heated. Remove mixture from skillet to bowl; cover to keep warm.
4Add remaining 1 cup pasta sauce to skillet. Top with 5 of the noodles, half of turkey mixture, half of cottage cheese and half of cheese blend. Repeat with remaining noodles, turkey mixture, cottage cheese and cheese blend. Cover; cook over medium heat 8 minutes or until noodles are tender. Remove from heat; let stand 5 minutes before serving.