Even without a fridge, you can replace lots of take-out meals with things prepared at home, just with a container that seals to keep out bugs. A loaf of bread and a jar of peanut butter. Bananas. Eggs. Canned tuna.

If you have some method of heating, you can add pasta and rice and beans and oats and sweet potatoes and lentils.

If people are really lacking these tools, I'd be happy to write a check to a New York charity that provides them.