Boston bean Cheddar cheese toastie | Tesco Real Food

Ingredients

• 1 tbsp olive oil
• 65g diced pancetta
• ½ brown onion, finely chopped
• 1 garlic clove, minced
• 100g Italian chopped tomatoes
• 50g tomato purée
• 1 tsp crushed chillies
• 1 tsp mustard powder
• 1 tbsp black treacle
• ½ x 400g tin black-eyed beans, drained and rinsed
• 100g grated mature Cheddar
• 100g grated mozzarella
• 4 thick slices sourdough bread
• 10g fresh parsley
• 10g unsalted butter