MPs have slammed an insulting memorial to hero cop Keith Palmer — a plaque on a canteen door.

Dad Keith, 48, was stabbed to death defending Westminster from a terrorist last year.

The only tribute to his courage is a brass plate on a door to the police mess, in a scruffy corner of the Parliamentary estate.

Tory Andrea Jenkyns said: “It would be an insult to his bravery if this is the only recognition.”

Colleague Nadine Dorries added: “It’s an absolute disgrace.

"Surely we can find the money to provide a decent memorial for a real hero.”

Labour’s Jack Dromey called for the gates to Parliament to be named the Palmer Gates.

A police officer added: “We’re honoured to have our mess named after Keith.

"But it would be a terrible shame if Parliamentary authorities fail to recognise his bravery with a memorial on permanent display for all visitors.”

Labour’s Valerie Vaz, of the House of Commons Commission, is in talks with Keith’s family over a proper, permanent tribute.

At Friday’s inquest it was revealed Keith and colleagues were left without support from a “roving” firearms squad for 46 minutes as they tackled attacker Khalid Masood.