What would some good vegan recipes to bring to an omnivore crab feast?

I will be going to an omnivore crab feast at my boyfriend's parents' outdoor yacht club. Even though I am vegan, and would prefer to join them later after the crab, burgers, etc. have been put away, his family would like me to join them. So, I am seeking vegan dishes (entree, appetizer, desert, and drink (alcoholic and non-alcoholic) that will seem to blend with with what other people are eating without using soy or meat ogs. I have done a lot of searching, but no luck which is a concern because the day-long event is tomorrow. Any help is appreciated.