Preheat oven to 375°F (190°C).
Place English muffin halves on a baking sheet.
Spread a spoonful of pizza sauce over each muffin half.
Sprinkle shredded mozzarella cheese evenly over the sauce.
Add pepperoni slices or your favorite toppings.
Sprinkle with oregano, garlic powder, and red pepper flakes if using.
Bake for 10-12 minutes, or until cheese is melted and bubbly.
Let cool slightly before serving. Enjoy!