Cook the chopped bacon in a skillet over medium heat until crisp. Remove the bacon and set it aside, leaving the drippings in the pan.
Season the beef cubes with salt and pepper, then brown them in the same skillet in batches. Transfer the browned beef to the slow cooker.
Add the carrots, onion, garlic, mushrooms, cooked bacon, red wine, beef broth, tomato paste, thyme, and bay leaves to the slow cooker. Stir to combine.
Cover and cook on low for 8 hours or until the beef is very tender.
About 15 minutes before serving, cook the egg noodles in a large pot of salted boiling water according to package directions. Drain well.
Remove the bay leaves from the slow cooker. Serve the beef bourguignon over the hot egg noodles and sprinkle with fresh parsley.