Does this place have vegan options?

They do

Yes

I ate one once. no flavor

Yes they do. I am a super sensitive Celiac with a dairy allergy and ate here happily with no issues.

Yes they do.

According to their website: "there's even a delectable kids menu, vegetarian, and gluten-free fare as well." They have an emphasis on seafood. So it would depend on how strongly you lean towards veganism over vegetarianism.