Spoon 1 tablespoon of olive oil onto a large, nonstick baking sheet. Spread evenly with a pastry brush to coat bottom of baking sheet. Arrange potato slices on baking sheet and bake 10 minutes or until pale golden in color. Turn potato slices over and cook 6 additional minutes or until fork tender and beginning to lightly brown.
Combine remaining ingredients except remaining olive oil in medium bowl and toss until well blended.
Remove potatoes from oven and spoon equal amounts (approximately 1 tablespoon per slice) of the pepperoni mixture on top of each potato slice. Return to oven and bake 3-5 minutes or until the cheese begins to melt. Remove from oven, drizzle the remaining 2 tablespoons oil evenly over topped potato slices. Let stand 5 minutes to allow flavors to absorb. Serve immediately for peak flavor.