Just made this the other day - I didn't think it was spicy at all. I thought it actually needed a little more spice. I added like juice which I really like in Thai food. Just use vegetable broth in place of chicken broth.
http://heatherchristo.com/cooks/2014/01/27/spicy-thai-curry-noodle-soup/

Lots of recipes can be modified to be gluten free. Know what needs to be avoided or what can be substituted, e.g. instant tapioca for crock pot thickening not flour (see American Test Kitchen recipes--that's their go-to ingredient), or corn starch, arrowroot for thickeners on the stovetop.

For starches look at Italian, Latin American, or Asian/Indian for inspiration for rice/risotto, corn, quinoa, mung bean noodles, buckwheat noodles, potatoes.

Take a trip to the American India Museum too; lots of GF options:
http://www.mitsitamcafe.com/content/menus.asp

Looking for best websites or cookbooks for gluten-free, vegetarian cooking. Or your favorite actual recipes. Bonus points for simple, every-day meals that kids will eat. Double bonus points for anything that can be done in a crockpot. Thanks!