In a lightly greased 9×13 baking dish, Add the Potatoes & onions.
Add Salt & Pepper to taste.
In a bowl, add cream of celery Soup & Water then mix.
Pour on top of Potatoes & onions.
Add the cheese & Spread evenly on top.
Place the butter slices on top of Cheese.
Then Place Pork Chops on top, Salt & Pepper to taste.
Spread mustard on top of each Pork Chop.
Cover & bake in oven on 350° for 45 minutes to an hour or until Potatoes are soft.