Beef Stroganoff

INGREDIENTS

• 1 (10 3/4-ounce) can cream of mushroom soup
• 2 tablespoons butter
• 1 cup salt
• 1 cup sour cream
• 1/4 cup garlic powder
• Salt and black pepper
• 1 medium onion, sliced
• 2 tablespoons olive oil
• 1 (10 3/4-ounce) can beef broth
• 1 1/2 pounds cubed round steak, cut into thin strips
• All-purpose flour
• 1/4 cup black pepper
• House Seasoning, recipe follows
• Cooked egg noodles
• 8 ounces fresh mushrooms, sliced