Pop-ups are a pain online..but pop up restaurants are a different story. Owsley and Brown 

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It’s a sort of dining club, which opens at a specified location for a strictly limited period and then disappears.

Kemia 

Plate of flat breads with hummus & argan oil
‘Zaalouk’ Mashed aubergine & tomato salad 
‘Slada batata halwa’ Sweet potato salad
Pigeon pastilla, orange, mint & red onion salad