So a couple of months ago, I wrote down every single thing that I ate in a week and how much it all costs (all prices in Nepali rupees). This should give you a reasonable idea on how much you spend weekly on food. I would like to note that I eat out for dinner every night. My cooking skills are poor and the I find the savings that I would make by eating at home to not be worth it. I also save time as I don't have to prepare or clean anything.
Sunday
2 eggs - 22
2 slices of bread - 10
3 bananas - 24
1 chicken wrap - 190
1 mirinda - 60
1 picnic chocolate bar - 80
Total: 386
Monday
3 eggs - 33
3 slices of bread - 15
2 bananas - 16
1 mixed chowmein - 120
half plate of buffalo choila - 65
1 Fanta - 35
Total: 284
Tuesday
2 eggs - 22
2 slices of bread -10
1 box of sweets - 100
1 chicken khanna set - 175
1 Fanta - 35
1 black tea - 15
Total 357
Wednesday
2 eggs - 22
2 slices of bread - 10
3 bananas - 24
1 chicken sizzler - 200
1 Fanta - 35
1 aero chocolate bar - 80
Total: 371
Thursday
2 eggs - 22
2 slices of bread - 10
1 banana - 8
1 Fanta - 100
1 potato wedges - 175
1 chicken breast - 460
total: 1250
Friday
2 eggs - 22
2 slices of bread - 10
Strawberries - 70
1 Tuborg beer - 475
1 chicken chili boneless - 170
1 vegtable pakoda - 85
1 Fanta - 35
1 Cadbury dairy milk - 250
Biscuits - 60
Total: 702
Saturday
3 eggs - 33
3 slices of bread - 15
Strawberries - 70
1 and a half plates of buffalo momos - 100
2 fantas - 70
1 Mixed fried rice - 120
Total: 408
Weekly Total: 3760 (US$38.70)
Average per day: 537.14 (US$5.53)
If you have any questions about food in Nepal, don't be afraid to ask below. I will try to answer them as best as I can. Any other forum members with any advice should also comment.