[DonDavis]

Well, first a few questions.

Is there an existing light in the pantry? If so, I would look into a fixture that mounts directly to the J-box that is motion activated. That would be the least complcated.

If no light in place and you are not experienced at home wiring, take your time. You can do some real damage very easily.

Search the web for home wiring/adding a light fixture. Read a TON before proceeding. And in the end if you have a buddy that knows wiring, bribe him with beer/food/sports tickets etc... for help.

Trying to add a door switch that turns the light on/off when it opens/closes can be a pain.

It would be nifty. But later when you have to troubleshoot, you may hate it.

Good luck!