In large skillet, brown hamburger and stir in onions. Season with salt, pepper, and garlic. Sprinkle flour over burger mixture and stir in.
Add mushroom soup, beef broth, worchestershire, and stir over medium heat.
Add mushrooms, stir in, and simmer over low heat until mushrooms are cooked.
Stir in sour cream just prior to serving stroganoff. Serve over a bed of wide egg noodles cooked per "al dente" instructions.