In this task, you will be presented with the directions of a recipe separated by "," and have to fill in the "___" which is a step that is missing from the recipe.

In lg.,bowl, beat egg; stir in onion, breadcrumbs and mustard.,Add beef and mix well.,Shape into 4 patties.,Cook in ungreased skillet for 5 minutes on each side.,Drain.,In small bowl, mix gravy, water, horseradish and mushrooms.,______,Cook uncovered for 5 minutes.
Pour over patties in pan.