Preheat your oven to 400°F (200°C).
Place the slices of bread on a baking sheet.
Spread a generous layer of pizza sauce over each slice.
Sprinkle shredded mozzarella cheese evenly on top.
Add sliced olives and diced bell peppers to each slice.
Sprinkle oregano and garlic powder over the toppings.
Drizzle a little olive oil over each slice.
Bake in the preheated oven for about 10-12 minutes, until the cheese is bubbly and golden.
Remove from the oven and let cool for a minute.
Garnish with fresh basil leaves before serving.