Pour potatoes in ungreased 2 quart casserole ... potatoes, and stir up cheese sauce. Top with pepperoni and cheese. Bake at 400 degrees for 30 minutes.
Substitutions for pepperoni: 1/2 pound ... Drain; stir into potato mixture or 1/2 pound bulk ... boiling, stir into potatoes. Arrange pepperoni on top ... halfway through the baking.