Into the crock pot, mix the can of cream of mushroom soup, Worcestershire, the broth, and onion soup mix.
In a separate bowl, mix together the ground beef, mayonnaise, breadcrumbs, salt, pepper, garlic powder, and Italian seasoning until everything is well combined.
Scoop about 2 tablespoons of the meat at a time and roll into balls, placing them into your crock pot in the soup mixture.
Cover with lid and cook on low for 6 hours or high for 4.
When ready to serve, cook your egg noodles according to package instructions on the stove. Drain and set aside.
Into crockpot, stir in your container of sour cream. Taste and add additional salt if needed, and then gently fold in cooked, drained egg noodles.