Instant French fish paté

I had to spend last week unexpectedly in France for a family funeral - hence the absence of posts - but we went out for the odd meal and I was very taken with the presentation of this fish paté which was brought to the table as an 'amuse' at a restaurant called Larcen.

My guess is that it was whizzed up from some leftover cooked fish along with some spices, a few cooked chickpeas or haricot beans and - I think I heard the waiter saying to the next door table - some mayonnaise. Looks like there was a bit of finely chopped red pepper and cornichon on the top and possibly even some grains of quinoa (or that could have been what was blitzed with the fish). Add a few baked or toasted slices of leftover baguette and you've got yourself a pretty and ridiculously inexpensive starter.

Still catching up on the work I missed last week but hopefully normal service will resume shortly . . .