This is easier than you think.
Crumbled bread crumbs help to stretch the ground beef plus make for a lighter, not so heavy, meatball.
Roll in onions, garlic powder, salt, pepper, celery salt (optional).
Pan fry with more diced onions and chopped mushrooms. The cream of mushroom soup is on stand-by.
After stirring in the soup, add a little beef broth to thin it somewhat. Lastly, add a generous dollop of sour cream, stir in, just before serving.
Ready to be served with your favorite pasta or rice!