Sausage casserole with beans

INGREDIENTS

• 6 tbsp olive oil
• 1 red onion
• 2 cloves garlic
• 1 red chilli
• 2 x 400g/14oz tins plum tomatoes
• salt and freshly ground black pepper
• 250g/9oz dried cannellini beans
• 3 cloves garlic
• 3 sprigs sage
• pinch salt
• 1 tbsp olive oil
• 12 good-quality sausages