While working on a lightning round about different kinds of sandwiches, I of course spent a bunch of time on the Wikipedia page for List of Sandwiches. We’ve all examined the now-tedious question of whether a hot dog is a sandwich (my personal view: “sandwich” is a tautological category; if you can gesture to your lunch and say, “hey want a bite of this sandwich?” without your interlocutor being confused, congrats, it’s a sandwich! thereby a hot dog is not a sandwich), but there’s no question about these regional delicacies:

Carrozza, also called “mozzarella in carrozza,” meaning “mozzarella in a carriage,” is a fried mozzarella sandwich. Not a sandwich of fried mozzarella: mozzarella, on bread, battered and fried.

A Guajolota is a tamal on a bolillo roll, which is a bit of a hat on a hat but i’m interested. In Chicago, they call a similar sandwich a “mother-in-law.”

The Australian “Hamdog” is a combined burger and hot dog. I was not prepared for what the bun it is served on looks like.

A Gatsby is a South African, specifically Capetonian, sandwich which can contain any of a variety of fillings, from masala steak to calamari to Vienna sausage, along with peri peri sauce or achar pickles. It is named after Jay Gatsby, via the film, and it’s served on a foot long roll to be divided four ways among friends, which doesn’t exactly seem like Jay’s vibe.

Roti john is an omelette sandwich made in Singapore, where the bread is added to the top of an omelette as it cooks, and then flipped to toast the bottom before serving. I am intrigued!

Chacarero, per Wikipedia, is “a Chilean sandwich made with thinly sliced churrasco-style steak, or lomito-style pork on a round roll with tomatoes, green beans and green chili pepper.” Sign me up!

A “British Rail sandwich” just means a bad sandwich, as the British continue to dunk on a service that was discontinued in the ‘90s.

The Jibarito is a meat and vegetable sandwich served on fried green plantain instead of bread. This particular sandwich was invented in the 1990s by Juan "Peter" Figueroa, a Chicago-based Puerto Rican chef, and is something of a Chicago specialty.

Dyrlægens natmad, or “veterinarian's night food,” is a Danish open-faced sandwich with liver pâté, sliced salt beef, meat stock aspic, and red onion rings on rye, named after a veterinarian who was a regular at a Copenhagen diner in the 1920s.

The Fool’s Gold Loaf makes me wonder about the veracity of the rest of the list. Supposedly it’s a full loaf of bread with one jar of jelly, one jar of creamy peanut butter, and one pound of bacon inside of it, but it may be an Elvis-related legend.

A chip butty is a sandwich filled with fries (or chips, as the British would have it), and optional condiments. Similarly, a crisp sandwich is full of potato chips (or crisps, as the British would have it), and can also be called piece and crisps, chip sandwich, crispwich, crisp sarnie, or crisp butty. Can I be honest? Sounds like a bit of a British Rail sandwich to me.