Made in Italy with potato and lupin, Heinz gluten-free pasta is better than most which aren't :)
Heinz Gluten Free Macaroni and Cheese - Tobie Puttock
Gluten may cause depression in subjects with non-coeliac gluten sensitivity
20% off Orgran Gluten Free Flour 500g $2.70 + Other Orgran Products
25% off Heinz Gluten Free Pasta 340g $3
The study you linked there seems sciencey, however the patients were self-reported as having a gluten sensitivity. That's hardly very clinical or science based.
All the subjects (and there were less than 2 dozen of them) had irritable bowel syndrome. You should probably add that to your link at the top, i.e. "Gluten may cause depression in subjects with non-coeliac gluten sensitivity, and with irritable bowel syndrome"
tl;dr, there is little if any real evidence that a gluten free diet has any positive effect on people that don't have celiac disease.