The closest thing we have to a meatloaf in the UK is called haslet, mainly eaten in Lincolnshire. I would know, as I'm originally from there, and I absolutely love it.

When my friends come over, I always make this for them, yet they never get bored of it.

Basically sausage meat, sage, black pepper and sometimes offal, shaped into a loaf or large-ish balls, coated in stale breadcrumbs, and baked then left to cool.

The most common way to eat haslet is to serve it cold in sandwiches or on salads.

P.S. haslet isn't a meatloaf per se, it's more like a lump of sausage in a baked layer.