Nadine

I farmed out to my daughters (satellite kitchens) gluten/dairy  free sweet potatoes and pie.

I'll make dairy free mashed potatoes when I'm making the rest of them. And I'll make the sweet potato recipe which is augratin. So there will be a choice and I still get to make what I wanted 

The vegetable is just steamed so, I will just not put butter on some of it

That should do it.

Appetizer still has both gluten and dairy but I'm not making another one.

This is a lot of food for a lot of people.  But these guests are driving 4 hours to be here so I want everyone to be able to eat.

None of them drink but, that's easy

All potatoes are gluten free. Any vegetables are also OK. Cooking some without butter or any dairy should work out. Good luck; I could never handle cooking for 13 people. Hope everything works out for you. 

@teganslaw I am making mashed potatoes which have cream and butter in them.  Gravy has gluten so I have to make a separate dish for her

The sweet potato recipe has cheese in it. Check it out: YUM https://www.browneyedbaker.com/sweet-potato-gratin-recipe/

I was excited about it until I found out somebody was dairy free.

So, it's either we make separate potato recipes are we watch her being limited to turkey and cranberry sauce and broccoli

Blah!