I have found very few references to the Dubrow's Cafeteria in Miami, although I remember it vaguely, from my childhood. It was right on Lincoln Road, which is a stone's throw from where my grandparents lived for most of my childhood. I spent much of my childhood visiting from Texas, staying with my grandparents, and walking from their apartment all the way down Lincoln Road till I got to the beach. Back then, it was pretty dead - now it's become a hotspot with clubs and trendy restaurants.
I found this in the book Catskill Culture: A Mountain Rat's Memories of the Great Jewish Resort Area by Phil Brown:
"From all their years in the Catskills, these Mountain Rats were the insiders who really knew the scene. People had their favorite local bars and restaurants for hanging out after a day of hard work, where conversations typically turned to who was working where this year. The chatting and hanging out continued in Florida in the winter, where they met friends at Dubrow's Cafeteria on Miami Beach in Lincoln Roadand reminsced about last summer in the mountains. That magic pulled them back the next summer, and the grew old and infirm, along with the Catskills themselves. As the region declined in the 1970's, the Mountain Rats competed for fewer and fewer jobs, and many had trouble setting up permanent roots. Cubans displaced them in the Miami Beach hotels."