Okay, I hate canned tomato soup. I hate it so much that I can't sit near someone who is eating it. The smell makes me nauseous. That recipe that Dawgluver shared. It's good stuff. There are none of those obnoxious flavours or smells that are in the canned stuff. I would just recommend using passata instead of canned tomatoes. That's already a puree and comes in a glass or plastic container, so no chance of weird metallic flavours.