Fold Over BBQ Mushroom Pizza

Ingredients

• 3 tsp instant dried yeast
• 2 tbs olive oil
• 3 cups plain flour
• 1 large brown onion, finely chopped
• 400g button mushrooms, chopped
• 1/2 bunch silverbeet, shredded
• 200g ricotta, crumbled
• 1/2 cup tomato passatta sauce