for food, I can't get out to shop anymore. Iv been getting freeze dried emergency food. its better for you and cheaper than nutrasystem.
I like honeyvalley brand, and augason brand.
for milk, I get nestles whole milk powder, or parmalat. The whole milk powder is way better tasting and better to use for cooking than nonfat dried milk.
I order miso, vegemite, and coconut oil. the coconut oil is a good fat, and can be used in cooking like butter, but I also get butter powder for times when butter is really important.
you can order from Amazon.
also its possible you have a grocery store near you that can deliver groceries to you.