Aramark’s Bases Loaded Dog, at Citi Field, features a Nathan’s foot-long dog with cheddar fondue, Applewood smoked bacon and green onions on a potato roll.

Another footlong creation from Aramark, the Bayou City hot dog at Minute Maid Park is a Nolan Ryan hot dog topped with smoked burnt ends of pork barbecue, cheese sauce, pickle chips, green onions and spicy barbecue sauce.

This H-Town hot dog, also served at Minute Maid Park, combines a hot dog with chopped brisket with red onions, cheese sauce, pickles, green onions and barbecue sauce.

Served at the Oakland Coliseum, Aramark’s tamale dog is an all-beef hot dog wrapped in a sweet corn (masa) coating and topped with pico de gallo, chipotle crema, scallions and crisp tortilla threads.

Aramark’s Boston-centric Fenway Frank is a steamed hot dog topped with brown mustard and relish on a New England-style bun.

The Jersey Shore dog, served at Citizens Bank Park, another Aramark account, is a savory combination of flavors on a bun: a hot dog, American cheese and chopped pork roll.

This vegan Beyond Bratwurst is available at Citi Field’s dedicated vegan stand.

At Texas Tech University, the Loaded Raider Dog features smoked sausage topped with chopped barbecue that is made daily, coleslaw and mayo in a hoagie roll.

The Phoenix Dog was developed to launch alongside Elon University's new basketball arena, the Schar Center. It is a mix of a classic beef hot dog, topped with Tickle-My-Ribs pulled pork (a local barbecue restaurant), and Phoenix Slaw (maroon and gold to match Elon's colors). The hot dog is topped with a special sauce, and fried onion straws for crunch.

Levy’s foodservice team at Wrigley Field creates both iconic dogs (this Chicago dog) and more outside-the-bun variations, too.

Here’s one of Levy’s other hot dogs: the Southwest Fiesta, a beef frank topped with chili-lime crema, pico de gallo, tortilla strips and housemade pickled peppers.

At Chase Field, Levy has created a cool Reuben hot dog, with a rye bun and topped with Reuben mac ‘n cheese, pastrami, fried pickles, secret sauce and green onions.

Also at Chase Field, the big jalapeno popper dog is a footlong beef hot dog with roasted jalapeno cream cheese, bacon, crispy jalapenos and onions.

Another one from Chase Field, this dog features an 18-inch sausage with hash browns, country gravy, cheddar cheese, bacon, fried eggs and Tapatio hot sauce.

Dodger Stadium sells more than 2.5 million hot dogs each year, including this foot-long pork hot dog by Levy, available either grilled or steamed with mustard and relish.