Sweet gesture from NFL star Quinnen Williams ... the NY Jets D-lineman donated $25,000 worth of food to medical personnel in N.J. -- and it was all handmade by a celeb chef!!
The former first-round pick hit up Brianna's Nutrition Kitchen this month to take care of staffers at Morristown Medical Center in Morristown, N.J. -- and the meals didn't disappoint.
TMZ Sports has learned Quinnen and the private chef hooked up the heroes with super healthy products ... including seasoned protein, veggies and potatoes.
One of the coolest parts of the gift?