Make the curry with coconut milk for creaminess.

GF pasta is not fancy party material - no grocery store pasta is.

Just make a grain salad like quinoa or a rice pilaf with fresh herbs. Or lentils.

Green salad with veggies and a vinaigrette - you can have cheese or croutons in a small serving dish for others.

Ratatouille or curried and roasted vegetables with some sweet potatoes included might be a filling main.

For dessert - serve a dairy free berry sorbet with lemon zest and fresh berries. Creme fraiche on the side for the dairy eaters.

GF DF vegetarians should not inflict themselves on others!
(I am GF/DF).

If they must, this awesome Indian cooking website has a gf section--http://www.manjulaskitchen.com/category/gluten-free/

Some of these don't have dairy/gluten or could use substitutes: http://www.saveur.com/article/Kitchen/18-Vegetarian-Main-Courses

Sticky Fingers for dessert--does GF and vegan and is fabulously delicious!

do eggs count as dairy? you could make a meringue shell with fresh fruit and sorbet