The phrase "plentiful food" means there is a lot of food available. It suggests that there is enough food for everyone and that it is easily accessible. Full definition
The sedentary lifestyle combined with plentiful food really packs on the pounds. (drnelsonsveterinaryblog.com)
The pioneering scientist / entrepreneur on biology's next leap: digitally designed life - forms that could produce novel drugs, renewable fuels, and plentiful food for tomorrow's world. (discovermagazine.com)
The restaurant served plentiful food buffet style, and the chef made a real effort to accommodate our vegetarian needs. (scubatravel.com)