In a large skillet, cook and stir bacon on medium heat until crisp. Remove bacon from skillet with slotted spoon; drain on paper towels. Drain all but 2 Tbsp. drippings from skillet. Add onions to drippings in skillet; cook 15 to 18 minutes or until onions are golden brown, stirring occasionally and adding flour, pepper and half the bacon for the last minute. Whisk in broth. (Onion mixture will be thick.)
Add chicken to slow cooker; cover with onion mixture. Cook on LOW for 4 to 5 hours (or on HIGH for 2 to 3 hours). About 15 minutes before ready to serve, cook noodles as directed on package, omitting salt. Drain noodles; place on platter.
Transfer chicken to platter, reserving onion mixture in slow cooker. Stir cooking creme into onion mixture. Top chicken with onion mixture, remaining bacon and the parsley.