Roasted Butternut Pumpkin, Spinach and Brie Pizza

Ingredients

• 1 ½ cups self raising flour
• 1 cup Greek yoghurt
• 2 tbsp olive oil
• 500 g butternut pumpkin, peeled and cubed
• 1 red onion, sliced into rounds
• Pinch of salt
• Freshly ground black pepper
• 2 tbsp tomato paste
• ½ tsp minced garlic
• ½ tsp dried oregano
• ½ cup grated mozzarella
• ¼ cup grated cheddar
• 2 cups baby spinach
• 150 g brie, roughly chopped