If you want to save even more cash, you could cook a big batch of lentils and then freeze them in portions, but canned cooked lentils (rather than the trendy – and more expensive – pouches) can be really affordable too. If you don’t have a food processor to help make quick work of the veggie chopping, try using a box grater instead. Serve this ‘ragu’ with pasta, or on top of quick polenta or mashed potato.