Spanish rice & prawn one-pot

INGREDIENTS

• 1 onion , sliced
• 1 red and 1 green pepper , deseeded and sliced
• 50g chorizo , sliced
• 2 garlic cloves , crushed
• 1 tbsp olive oil
• 250g easy cook basmati rice (we used Tilda)
• 400g can chopped tomatoes
• 200g raw, peeled prawns , defrosted if frozen