A proposed sunny summer picnic (or a rainy summer lunch, depending on the Weather Dogs)

We will, I think, be 14, plus one not-quite-2 year old. We need veggie friendly stuff, and gluten free stuff, plus all the usual picnic foods. This is what I have planned so far. I would be glad of further suggestions

Grilled chicken pieces
Ham slices
Hard boiled eggs
Veggie sausages
Bean thingie of some sort
Green salad
Rice salad
Coleslaw
Potato salad
(Dressings all separate)
Seafood mix
Gluten free bread rolls

Meringues

Ginger beer
Lime cordial
Lemon cordial
Orange juice