1 pkg. scalloped potatoes
1 (16 oz.) can tomatoes or pizza sauce
1 1/2 c. water
1 (6 oz.) pkg. sliced pepperoni
1 pkg. Mozzarella cheese, shredded

Empty potato slices and packet of seasoned sauce mix into ungreased 2 quart casserole dish. Heat tomatoes, and water to boiling, stir into potatoes. Arrange pepperoni on top and sprinkle with cheese. Bake at 400 degrees for 30 to 35 minutes uncovered.