Prepare the beef chuck roast by cutting it into bite-sized pieces.
Season the beef pieces with salt and pepper, and set aside.
Heat a skillet over medium-high heat and sear the beef pieces on all sides until browned.
Place the seared beef into the crockpot. Add diced onion and minced garlic on top.
In a separate bowl, mix the beef broth, Worcestershire sauce, soy sauce, and cornstarch.
Pour the broth mixture over the beef and vegetables in the crockpot.
Cover the crockpot and cook on low for 7-8 hours or high for 4-5 hours, until beef is tender.
About 30 minutes before serving, cook the wide egg noodles according to package instructions.
Once the beef is tender, stir everything gently in the crockpot.
Serve the beef tips over the egg noodles and garnish with fresh parsley before serving.