Heat the oven to 400 degrees and line a baking sheet with parchment paper.
Place the English muffin halves cut side up on the baking sheet.
Spread about 1 tablespoon of pizza sauce on each muffin half.
Sprinkle roughly 3 tablespoons of mozzarella cheese over the sauce on each half.
Arrange the sliced black olives on top of the cheese to form a spiderweb pattern on each pizza.
Bake for 8 to 10 minutes until the cheese melts and the edges turn golden.
Remove from the oven and let cool for a minute before serving.