Sōzai Pan & the Savoury Roll - One Sandwich

Soft roll wrapped around a wiener sausage; ketchup and mustard.

Bread filled with tantanmen-inspired spicy sesame meat sauce; fusion.

Takoyaki (octopus balls) in bread; Osaka street food fusion.

Various spaghetti preparations in a roll; meat sauce, mentaiko, etc.

Sausage baked inside bread dough; spiral or straight.

Russian-influenced fried bun with meat filling; found at Japanese bakeries.

Naporitan spaghetti in bread; yoshoku classic.

Naporitan pasta served with bread or as sandwich; yoshoku kissaten standard.

Japanese hot dog; often sweeter roll, various toppings, sometimes uses arabiki (coarse) sausage.

Japanese hamburger steak (Hamburg—beef/pork patty with onion, served with demi-glace) on bread.

Hamburg sando specifically with demi-glace sauce.

Hamburg sando with melted cheese on the patty.

Japanese hamburger steak (Hamburg—no bun originally) inside bread.

Gratin (béchamel, macaroni, cheese) as hot sandwich filling.

Doria (rice gratin) elements as sandwich.

'American Dog'—battered and fried hot dog on a stick; festival food.

Hot dog with cheese; or Korean-influenced cheese-filled corn dog.