There's a place not far from me called the Haxey Gate Inn, in one of the villages between Scunthorpe and Doncaster (turning off M180).
They do a 32oz rump steak with trimmings for £16.95. Me and the Mrs had one as a challenge to each other on our first night out alone since our boy was born. Now bare in mind I'd had normal breakfast and dinner and one poo all day; I put back the steak, the trimmings, extra beans and pepper sauce for the steak and tried to have a go at Nats steak too (she ate about 1/4 of her plates worth). I've NEVER felt so full in all my life and felt awful for the next 16 hours or so until I did a huoooooj poop. About 3 1/4lbs we worked it out as I'd eaten.