Preheat the oven to 425 degrees F.
Place the pieces of naan on a large baking sheet. Spread each piece with olive oil and sprinkle evenly with oregano, basil, and crushed red pepper flakes. Then add the olives and sun-dried tomatoes.
Divide the cheeses evenly among each pizza. Add the bell peppers and drizzle lightly with olive oil. Season the peppers with salt and pepper. Transfer to the oven and bake for 10-15 minutes or until the cheese has melted and the peppers are beginning to char. Garnish each pizza with fresh arugula and basil. Eat!