what sub roll bread does firehouse sub use for its tunafish sandwich
Firehouse Subs uses its signature toasted sub roll —available in white or wheat —for the Tuna Salad sandwich. The roll is a proprietary “private recipe” sub roll that’s toasted (and for most hot subs, steamed with the meats/cheeses; the tuna sub is served cold but the bread is still toasted).
What the bread actually is
- Type: Sub roll (hoagie-style), offered as White or Wheat at no upcharge on the Tuna Salad sub.
- Preparation: The roll is toasted , which gives it a light crunch that contrasts with the creamy tuna salad.
- Branding: Firehouse describes its bread as a “toasted private recipe sub roll” used across the menu.
Some fan sites and copycat recipes simply call it an 8-inch sub roll when recreating the sandwich at home, reflecting the standard hoagie shape and size used in-store.
How it’s built on that roll (context for the bread choice)
The Tuna Salad sub is layered with:
- Tuna salad (tuna, mayo, celery, and seasonings; some versions note relish/mustard/black pepper)
- Provolone cheese
- Lettuce, tomato, onion, plus mayo and spicy deli mustard
- Served with a pickle spear
Because the sandwich is cold (unlike most Firehouse subs), the toasted roll provides texture without steaming the fillings.
If you’re making it at home
To mimic Firehouse’s build:
- Use an 8-inch white or wheat sub/hoagie roll
- Lightly toast the inside faces
- Add provolone, then a generous scoop of tuna salad, then veggies and condiments as above.
TL;DR: Firehouse Subs’ Tuna Salad sandwich rides on its standard toasted white or wheat sub roll (a private-recipe hoagie-style roll).
Information gathered from public forums or data available on the internet and portrayed here.