On a large microwave-safe plate coated with non-stick cooking spray, arrange zucchini in a single layer. Microwave, uncovered, on high for 3 minutes.
Spread 1 teaspoon pizza sauce on each zuchini round; top each with a slice of pepperoni.Heat uncovered for 2 minutes.
Sprinkle each with cheese, jalapenos and olives. Microwave 40-60 seconds longer until cheese is melted.