Found this place by accident last night, heading for a tip in Grimsby this morning!
Take the Ulceby/Killingholme/Immingham slip off the A180 (think its the A160) and it’s just there on the left hand side.
Keyfuels on site. Good flat concrete parking. Well stocked shop and a nice clean cafe serving decent food at cheap prices eg Corned beef hash, liver & onions, Sausage & mash etc with tea/coffee for about £4.00
Parking is £12.00 with a shower
All in all, a decent place to stop. Only critisism - only 3 showers and sinks in toilets are to small to get a wash in!
I would recommend it though!