It is a place for homeless or indigent people to get a hot meal, free.
"A soup kitchen is an establishment which offers meals to the needy for free or at very low cost. Soup kitchens can be found catering to the poor and needy all over the world, and many also offer a variety of other support services to their patrons. In many instances, visitors to a soup kitchen do not need to meet any eligibility requirements, with meals being offered to all without question."
Here it is a place where food is available to those in need. Need not be proven.
A soup kitchen is a place where food is given free of charge to the needy
A place for the homeless/needy folks and it is run by Volunteers. Donations help provide the food.
It is a place where homeless people go and get a free meal.
It is a place where the homeless and needy can go to get a free hot meal, and is usually run by volunteers
You are lucky, don't you have soup kitchens in your country? Maybe they don't have so many needy people over there. Here in US the soup kitchens are run by church groups in the church kitchen/pantry and they are subsidized by the government (with tax payers' money). They provide once a day hot healthy and balanced meal to anyone needy (poor, destitute or unemployed) in their grounds..