We have a campervan and these force you to be ruthless about packing and the physical volume of items you take with you. Many sites ban the burning of charcoal, so we have used gas BBQs for years.
These are about £80 and are fantastic for picnics.

This thing is so good that we use it at home as a tabletop BBQ. Under lockdown with just the two of us, there is no need to mess about with a bigger one.

The key feature is the lid which greatly accelerates cooking and thus saves gas. Excellent design, good quality non stick coating, very easy to clean and unlike other little gas bbq units, it genuinely gets hot enough to really do the job.

The gas canisters can be found for about £4 each and I would guess you get 10 bbq out of each one.

Cadac is not a big brand in the UK but dominates the market in South Africa for gas devices. Braiing (SA for BBQing) is like a religion over there.
https://www.keengardener.co.uk/cadac-safari-chef-2-hp.html?utm_source=TradeTracker&utm_medium=316064
These are about £80 and are fantastic for picnics.

This thing is so good that we use it at home as a tabletop BBQ. Under lockdown with just the two of us, there is no need to mess about with a bigger one.

The key feature is the lid which greatly accelerates cooking and thus saves gas. Excellent design, good quality non stick coating, very easy to clean and unlike other little gas bbq units, it genuinely gets hot enough to really do the job.

The gas canisters can be found for about £4 each and I would guess you get 10 bbq out of each one.

Cadac is not a big brand in the UK but dominates the market in South Africa for gas devices. Braiing (SA for BBQing) is like a religion over there.

https://www.keengardener.co.uk/cadac-safari-chef-2-hp.html?utm_source=TradeTracker&utm_medium=316064