Step 1

In a large bowl, mix together ground beef with 1/3 cup condensed French onion soup, bread crumbs, egg, salt, and pepper.

Step 2

Shape into 6 oval patties. Brown both sides of patties in a large skillet over medium heat. Pour off excess fat.

Step 3

In a bowl, blend flour and remaining soup until smooth. Mix in ketchup, water, Worcestershire sauce, and mustard powder.

Step 4

Pour over meat in skillet. Cover and cook for at least 20 minutes, stirring occasionally.

Step 5

The longer you let simmer, the thicker the gravy becomes.