Cheese factory Seelisberg
open from 8-12
try the creamy, the mild or the tasty mountain cheese
short walk 15 mins
Volg grocery store
there is one at Seelisberg and one at Emmetten also. They have open almost every day (even on Sundays).
You will find everything what you need. There are a lot of local products available. Give them a try.
If you need more: the Länderpark at Stans is a nice shopping mall.
You can even take the bus. It's operating hourly and takes you in 57 mins directly from Seelisberg (Bahnhof) to the Länderpark.