Tortilla pizza

Ingredients

• 2 teaspoons olive oil
• 2 cloves garlic, finely diced
• 1 x 400g can plum tomatoes
• 1 teaspoon dried oregano or mixed Italian herbs
• 2 teaspoons tomato purée
• 4 wholemeal soft tortilla wraps
• 1 x 125g ball reduced-fat mozzarella, drained
• 80g mushrooms, sliced
• ½ teaspoon smoked paprika (optional)
• 1 small red onion, finely sliced
• 80g frozen pepper, thawed, or ½ fresh pepper, sliced