Fast food outlets in Chamberlain:

McDonalds
Located right in the center of Chamberlain at the main cross roads!
Plenty of parking and a drive through are available

Subway
On the main East-West Road through Chamberlain about 200 yards either before or after the highway bridge. There is plenty of parking available at Subway

Pizza Hut
Located at the main turn off from the Interstate I-90.

Dairy Queen
Located travelling West – located at the first turn off for Chamberlain
Travelling East it is the second turn off after the river.
There is plenty of car parking and a drive thru.