Ive been through every stage like this with Isla.....
Refusing food, refusing foods, refusing chairs, kicking off............and over time realised that the more I battled her the worse she became.
So Ive took my foot off the throttle with her eating now, and we just wing it.
She has improved so much, and is now back in her highchair eating fantastically. Dont worry if you have to do finger food, or let her do it herself, or even for her to go hungry.
We had a spell where Isla refused pretty much everything, and after weeks of me trying to coax and even force..... just couldnt do it anymore. It sounds awful but when I stopped forcing the issue, she obviously got hungry, so when she was offered food she took it quickly.
Id say if youre going out then make sure shes had a sleep, and keep her on the hungrier side of normal. we did this, and she was so much better, and even tried other foods then too.
At home, try other 'eating places', and if that doesnt work then let her go loose with finger food, but try not to let her wind you up if she doesnt eat it.
xxx