^^^ That's a Sonora Dog, invented by Mexicans!
Like they have aguacates in Nueva Jork...
They're only a topping if you want it. They give props to California regarding the creation of the dog, but likely the dog underneath it all over there is probably an Oscar Meyer. The hot dogs here are insanely good, made by crazy people and customized for the individual restaurants.
While we are on hot dogs in this fried foods category, I present to you the world famous Rutt's Hut Ripper
Hot dogs deep fried until the skin "rips" topped with "relish" which no one really knows what it's made from but compliments the dog immensely. It's not too sweet. It's not mustardy either. It's really it's own thing. The one on the left is a "ripper". The one on the right is a "creamator" which is, you guessed it, burnt all the way through. Tastes like bacon.