Here's a great blog series on how to set up cooking and cleanup while your kitchen is being remodeled, from parent hacks.
When I had my retail store I used to keep a few hot plates for clients to borrow. They were always much appreciated.
The best possible approach is when your contractor sets up a "field kitchen", in a room away from the remodeling activity.
A field kitchen can consist of some of your old cabinets, the sink and counter, and whatever existing or new appliances that can be made to work in the new location.
It's not that hard to do; and really, REALLY, eases the wait until your new kitchen is done and ready to use.