Beetroot Soup with Feta

Delicious and quite substantial due to the feta. My only issue is that the roast tomato sauce which is incorporated in the soup towards the end of the cooking time is time-consuming to sieve (but it does need sieving -processing would leave little shreds of tomato skin and make the sauce bitter by breaking up the seeds). One way to speed this up might be to slip the tomatoes out of their skins after roasting so that the skins don't end up blocking the sieve holes.