Sorry to disappoint you all but it's good, I think it may be a steak & onion Heinz Big Soup, they're a rather orangey colour (we certainly didn't order any in latest shop though, it just arrived among all the cans as a mystery item)
@sarahdalgulls I think it might be the steak & onion from that range, I vaguely remember it being rather orangey. Or maybe the lamb, but I think I'd have got that from the smell