I was like "hahaha.." when I read Merojageer's comment.
Pais babu nepal ma ""Nepalese food (Daal, Vaat, Tarkari) for US $ 5.00 a week"".
The household expenditure in Nepal has risen enormously.
I estimate that the food expenses for 4 adult member family in Kathmandu valley is around Nrs 15,000. so thats nearly 200 Dollars/ month i.e $50/week. yeh! just eating bihan, deusu and beluka Nepali style food. Outside Kathmandu it may vary from Nrs 5000-12000, my estimate.
I further went like" hahaha .."when I read "If the same size family eats the exactly same food and same quantity in USA it will cost more US $ 341.00 a week which you mentioned above."
I beleive, most Nepali living in states don't spend as much as the natives do, in food for sure. May be same for rent, communications, fuel, insurance...but not for food.
I feel that may be they spend 50-75% of the natives in food.
So, I will do the maths for you. The average food expense for same Nepali family living in US will be around 200-250$.
That's similar as living in Kathmandu.
I am strictly talking about food here.