1- Preheat oven to 220C
2- Brush a large baking sheet with a little of the oil
3- Place the pizza base on the prepared baking sheet
4- Spread the tomato puree over the pizza base with a 2cm of the edge
5- Sprinkle with the thyme
6- Arrange the onion, green pepper, tomatoes and olives over the pizza
7- Scatter over the cheese
8- Season to taste with salt and pepper and drizzle with the remaining oil
9- Bake in the preheated oven for 12-15 minutes, until bubbling and golden
10 Serve immediately
