Is there a place to have lunch inside the museum? Meaning a cafe or place to purchase food? My daughter has a gluten intolerance as well do they have gluten free options?

You might want to bring your own gluten free foods. There is a Sub Way ,there.

yes they sell subway and/ or you can bring your own food instead of the tables as well. That's what my family did last time.

I would suggest bringing a lunch for gluten-free options

The have a Subway by the entrance so you can get lunch there.

They have a subway inside on the first floor near the entrance. There are many restaurants nearby.

They have a subway. I don't know if Subway has gluten free options.