I had a same sad but true experience there. In everest, they make you wait for too long time and the food that they serve is also not too good. I had bad food experiece in temptation and Himalayan Aroma too. The worst situation for me was on Laligurans Resturant which is closed now . The owner of Laligurans used to sit on the table a side and spit his paan parag on a cup while we were eating on next table. Once I asked Dai aja momo ko soup dherai piro thyo then his reply was'  Khai tapailai matra piro lagecha kasailai lageko chaina" . He used to address his cusotmer as if they were there to eat for free.  Especially Nepali Resturant owners in Irving should change the way they are operating or else they will loose many of their customers as Me.