We are living out of a bar fridge. Its a much less exciting game of tetris to fit everything in but we manage.
The staff at the fruit shop are always happy to help me pick the good fruit and veg from the bad.
The library has computers with internet access which is free
ETA - dont know about other community services but for a while, my dad was teaching a group of men with mental / drug issues to cook very simple meals. Microwave jacket potatoes, simple steamed veg, etc. If there isnt something like that in homeless shelters and community centres, there should be.

Im sure in some circumstances it you're right N2L, but I find it really hard to belive that the majority of people dont have access to information they need to cook a basic meal.

Going vegetarian is another way to dramatically decrease costs and the meals can be simple.