Holiday wreath pizza

Ingredients

• 1 pizza crust - store bought or make your own
• 1 chorizo sausage
• 1 red bell pepper
• half green bell pepper
• half yellow bell pepper
• a few artichoke hearts
• 2 garlic cloves
• 250 ml passata
• black pitted olives
• 1 small onion
• handful of grated cheese
• 1 tablespoon dried oregano
• 1 tablespoon dried thyme
• pepper and salt to taste