In reply to barbeg:
I reckon you will be OK with the meat - that page on the Toll website has not been updated since before Brexit, if it had been they would probably have added the UK to the list of Switzerland, Liechtenstein, Iceland, Andorra and San Marino which are granted exceptions.
Technically, there is a limit of 6000 NOK per person on how much you can import into Norway for consumption in the country, you should be OK unless you have expensive tastes!
It's been a long time since the customs people at Gardermoen showed much interest in flights from the UK. They save their energy for more juicy targets!