Preheat the oven to broil.

Brush both sides of zucchini rounds lightly with olive oil.

Sprinkle the zucchini rounds with salt and pepper.

Broil the zucchini rounds for 2 minutes on each side.

Place cooked zucchini rounds on a large lined baking sheet. Top the zucchini with a small amount of spaghetti sauce, cheese and pepperoni pieces.

Broil on low for 1-3 minutes, or until cheese is melted.

Sprinkle with Italian seasoning and serve warm.