Gluten free and family friendly restaurant

Hi all we are a family of 3 and we will be visiting Miami in May as part of a bigger trip. We have never been to Miami before. On one of the days it will be his birthday and he has coeliac disease so he needs to eat gluten free. I am looking for a restaurant that is both kids friendly but also has good gluten options / is known to he knowledgeable about cross contamination where we can have our dinner. Any suggestions please? I am sure that there are plenty of places that tick both boxes but not knowing the city I am struggling a bit. We are not into chains when we can avoid it and love authentic food. Our kid is not too fussy for a 3 year old. Thank you!!!