This Hell's Kitchen southern restaurant serves craw-daddy sliders, which are buns stuffed with crawfish salad.

If you prefer to eat your expensive beef in tiny sandwich form, then head to this Sushi restaurant. The little wads of fancy beef come on brioche buns with lettuce, tomato and aji panca ketchup.

The proper etiquette when handling these Kobe beef sliders is to hold your pinkies out, so as to avoid a mess from the oozy Wisconsin cheddar, caramelized onions and ginger ketchup.

This new Chelsea hot spot serves tiny lamb burgers with cilantro, red onion and sumac aioli. The restaurant calls these "Spiced lamb burger bites."

Dry-aged Beef + Pork Belly + White Cheddar = Lower East Side hotel restaurant slider.

These little sandwiches are stuffed with seared dayboats scallops and Old Bay blue crabs, plus caper-tarragon remoulade and red cabbage slaw.

This Downing Street classic serves salmon sliders with dill crème fraîche. They're not called appetizers, they're hors d'oeuvres:

Brickyard serves three kobe beef sliders, each with a different topping combination. One has bacon, cheddar, and house BBQ Sauce. Another has caramelized onions and New York State Bleu cheese. And the last one has avocado, goat cheese, pico de gallo, and chipotle ketchup. That's a lot of ingredients.