Preheat oven to 200°F. Arrange bread on a baking sheet and toast in oven for 10-15 minutes, flipping several times throughout, until toasted and crisp.
Increase oven temperature to 350°F and allow to preheat.
Add a generous spoonful of pizza sauce to each toast slice; spread evenly with back of spoon.
Top with shredded mozzarella and desired toppings. Sprinkle with oregano.
Bake toasts in preheated oven for 5-10 minutes, or until cheese is melted. Remove from oven and serve warm.
Recipe adapted from: https://simply-delicious-food.com