Pizzeria Chicken and Potatoes

In ungreased 13×9 baking dish melt butter in preheated oven.
Meanwhile, in heavy 2 qt. sauce pan combine water, tomatoes,
scalloped potato mix, salt and oregano stir to blend. Cook over
medium heat, stirring occasionally, until mixture comes to a full boil.
Boil for 3 minutes, stirring occasionally. Set aside. Dip chicken
pieces into melted butter; place in same baking dish. Spoon potato
mixture under and around chicken. Cover with foil. Bake at 350 for
15 minutes. Remove foil; return to oven. Continue baking for 45 to
50 minutes. Add pepperoni slices; sprinkle cheese over pepperoni
and chicken. Return to oven and bake for 8 to 10 minutes or until
cheese is melted and chicken is fork tender.