Walnut & Lentil Bolognese

Ingredients

• 30ml rapeseed/olive oil
• 2 cloves garlic, finely chopped
• 1 medium onion, finely chopped
• 2 celery stalks, finely chopped
• 1 medium carrot, finely chopped
• 100g broken walnuts, chop into coarse crumbs (or whizz in a blender)
• 125g green lentils, rinse well in water
• 2 tins chopped tomatoes