Everything you need is in Pittsfield. It's only 15 minutes from the resort.
Now that we have been and gone, I will answer the question. We flew into Albany so we could bring very little food with us. It was early evening when we obtained the rental car and started driving. Whole Foods was conveniently located en route to Hwy 43. (I don't normally shop there, but it appeared to be the handiest ). There, we picked up essentials and ate supper. It was dark by the time we arrived so I'm glad we had completed that errand. Pittsfield was out of our way. A local told me you can also take Hwy 20 to Albany airport, which does go through Pittsfield, but as tourists unfamiliar with the local routes and relying on Google Maps, that appears out of the way.
There is also Target in lanesboro or something like that. Its closer than pittsfield.
Either buy at your local grocery store before getting to the resort, or go to Pittsfield.
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