Firehouse Subs is renowned for its meaty, hot sandwiches. But its menu goes beyond that. Vegetarians are not left out.
You can enjoy a flavorful, filling, and fully meat-free meal here.
How?
You just have to build it. Firehouse Subs lets you customize your meal and add or take out what you don’t want. This enables you to make your own vegetarian sub while still maintaining flavor.
In this piece, I will walk you through the steps to creating your vegetarian or vegan sub at Firehouse Subs.
Does Firehouse Subs Offer a Vegetarian Sub?
Yes, Firehouse Subs offers a vegetarian option called the Veggie Sub. It’s pretty basic, though. But it’s a great starting point. However, the Veggie Sub is not your only choice.
The Firehouse Subs Veggie Sub includes:
- Sauteed bell peppers, mushrooms, and onions
- Melted provolone, cheddar, and Monterey Jack
- Fully involved toppings (tomato, lettuce, onion, mayo, deli mustard, and Italian dressing).
But you’re not limited to that option. You can build your own vegetarian or vegan sub from scratch.
Let me show you how to do that:
How to Build Your Vegetarian Sub
If you’re not satisfied with Firehouse Subs’ basic vegetarian sub, you can create a more personalized one with just a few choices.
Here’s how:
Vegetarian-Friendly Bread Options
I don’t think you will much of an issue here because all the bread Firehouse Subs offers are vegetarian-friendly. You can choose from the following:
- White Sub Roll
- Wheat Sub Roll
- Gluten-Free Bread (available in most outlets)
All three options do not contain any meat-based ingredient. However, only the gluten-free bread is vegan.
Choosing the Right Cheese
This is where things start to get tricky. Cheese can add flavor and richness to your sub. That’s if you eat dairy. Here are some vegetarian cheese options you can choose from:
- Monetery Jack
- Cheddar
- Provolone
The possibility of customizing your meal with these cheese options is endless. You can go heavy on one or mix them to get a unique flavor. Want more protein and flavor? Just ask them to add double cheese to your sub.
Go Hard on the Veggies
As a vegetarian, this should be the best part of your meal customization process. Pile on the vegetables. Fortunately, Firehouse Subs offers a wide range of fresh veggies you can choose from, including:
- Tomato
- Lettuce
- Onion
- Mushrooms (sautéed)
- Bell peppers (sauteed or raw)
- Banana peppers
- Black olives
- Jalapenos
- Pickles
You can load your sub with as many veggies as you want. The best part? They don’t charge extra unless it’s an item like an avocado.
Sauces and Condiments
This is where the customization really gets interesting. Want to add some personality to your sub? You can do that with the sauces and condiments Firehouse Subs offers. Here are the vegetarian-friendly options on the menu:
- Deli Mustard
- Light Mayonnaise
- Spicy Mustard
- Sriracha
- Sweet Mustard
- Marinara Sauce
- Italian Dressing
The sauces and condiments listed above are vegetarian. But if you’re vegan, you can skip the mayonnaise and double-check the dressing.
Add-Ons That Work for Vegetarians
Being a vegetarian doesn’t mean you will miss out on the wonders Firehouse Subs offers. You can load your sub with extra fillings. Here are some vegetarian-safe options:
- Extra cheese
- Avocado
- Extra veggies
- Black olives
- Sauteed peppers and onions
Some Firehouse Subs outlets may also offer hummus or other seasonal ingredients. Just ask them what they have, and ensure it is vegetarian-safe.
How to Make It a Combo Meal
After building your sub the way you like it, the next step is to make it a round meal. How do you do that? By pairing it with the right drink and side. You can make your sub a complete meal by adding a drink and chips or a cookie.
Here are some vegetarian-friendly chips on the menu:
- Doritos (Nacho Cheese)
- Lay’s Classic
- Miss Vickie’s Sea Salt & Vinegar
- Baked Lay’s
Want something sweet? Try Firehouse Subs cookies. The cookies are vegetarian but not vegan. You can pair any of these sides and your sub with tea, lemonade, or a soda for a satisfying combo.
Other Vegetarian Items You Can Have
While subs are the star, Firehouse offers a few vegetarian-friendly extras:
- Chili (varies by location – ask if it’s meat-free)
- Side salads without meat
- Cookies and brownies (vegetarian, not vegan)
- Chips
- Pickle spears
These sides can help fill out your meal without adding any meat.
What If You’re Vegan?
Going fully vegan at Firehouse Subs is doable, but it requires more tweaks. Here’s how to do it.
Build a Sub Without Cheese or Mayo
Start with a basic sub and skip these ingredients:
- Cheese
- Mayo
- Any dressing that contains dairy or eggs
Stick with mustard, oil, vinegar, and hot sauces.
Double Veggies for Fullness
When you remove cheese and condiments, it helps to bulk things up with:
- Extra mushrooms
- Extra sautéed onions and peppers
- Avocado (if available)
- Double pickles or olives
Most locations are happy to load up your sandwich.
Best Bread and Sauce Choices
Vegan-friendly breads and sauces include:
- Bread: Gluten-free bread (other breads may contain dairy)
- Sauces: Deli mustard, spicy mustard, oil & vinegar, Sriracha, and marinara
Always double-check with staff if you’re unsure; they can pull up the allergen info on their screens.
Customizing Through the Firehouse App or Website
Ordering online or through the Firehouse app makes custom builds easier.
How to Use the App for Vegetarian Orders
- Start with the Veggie Sub or use the “Create Your Own” option
- Remove unwanted ingredients (like mayo or cheese if you’re vegan)
- Add your favorite veggies and sauces
- Save your custom sub so you can reorder it next time
The app also shows allergens and ingredients, which makes it easier to spot anything non-vegetarian before checkout.
Wrapping Up
Being vegetarian or vegan doesn’t mean missing out on a good sub. At Firehouse Subs, you can build something fresh, filling, and totally meat-free using the ingredients they already have on hand.
