Which Nathan's Famous Services, Inc. products are vegan?

• Nathan's Famous Services, Inc.

  CONEY ISLAND PRETZEL DOGS, CONEY ISLAND
• Nathan's Famous Services, Inc.

  BEEF PRETZEL DOGS HOT DOGS WRAPPED IN PRETZEL DOUGH, BEEF
• Nathan's Famous Services, Inc.

  UNCURED BEEF FRANKS, UNCURED BEEF
• Nathan's Famous Services, Inc.

  JUMBO RESTAURANT STYLE BEEF FRANKS, RESTAURANT STYLE BEEF
• Nathan's Famous Services, Inc.

  CONEY ISLAND BEEF BAGEL DOGS, BEEF
• Nathan's Famous Services, Inc.

  JUMBO FOOT LONG BEEF FRANKS, BEEF
• Nathan's Famous Services, Inc.

  ONION SAUCE HOT DOG TOPPING
• Nathan's Famous Services, Inc.

  HOT DOG TOPPING, CHILI
• Nathan's Famous Services, Inc.

  CONEY ISLAND CORN DOGS
• Nathan's Famous Services, Inc.

  BEEF BUN LENGTH FRANKS, BEEF