Mix hamburger, sausage, eggs, bread crumbs, and spices in a large bowl. Use a large tablespoon to portion meat mixture for meatballs.
Add vegetable oil to large skillet and fry meatballs over medium heat until browned on all sides. Remove to a baking dish.
Boil egg noodles until done, mix a tablespoon of butter into noodles to they don't stick together.
Add flour to pan drippings, stir into oil and drippings over medium heat to brown flour. Add milk slowly into mixture to make gravy. Allow to simmer 5-10 minutes to thicken gravy. Mix in sour cream just prior to serving.
Pour gravy and meatballs over buttered noodles and serve.