Ip Man ----

Nepal has a lot of place that offers continental dishes, Thamel ma Gaia bhanne thau cha, the food they serve is fresh. Nepali menu khaye ni huncha, just tell the person attending you guys to keep is less spicy.. tyo bahek roadhouse is nearby.. along with coffeepasal in durbarmag ..

Breakfast is always good at Nanglo or the yellow house at sanepa

ABC nagarnu it takes atleast 7-8 days of trek, as u said his knee hurts. but go to muktinath if you want to, the roads are crappy after jomsom but bike ma majjale jana paucha and you can hire those bike in thamel

Pokhara is indeed beautiful, sarankot bata good range of himalayas dekhincha depending on the weather condition, while nagarkot and bandipur shares the range, thou the view is different. I personally liked Nagarkot, Also if you wanna hike - you can hike to nagarkot from kathmandu, takes a good 6 hrs one way but ppl are doing it.

there are few restaurants that offers cultural shows, you can take him to one, else yak and yeti has those almost everyday for dinner- well had those not sure if they still have them now, you could check with them

places to visit in ktm and nearby -bhaktapur, patan durbarsquare, basantapur, bouddha swayambhunath - remember most of these sites are destroyed by earthquake and are under renovation thou i believe patan meuseum is still open

outside valley - bandipur - pokhara, chitwan and lumbini

Short hike - poonhill - the view is lovely!

before you guys head here.. please do tell him that we are still getting aftershocks, and about 3 heritage sites are down...