Small: $6.29 — 380 Calories
Medium: $9.49 — 740 Calories
Large: $13.99 — 1140 Calories
This sub features premium USDA Choice corned beef brisket and melted provolone cheese. When ordered “Fully Involved,” it comes with:
- Mayonnaise & Deli Mustard
- Lettuce, Tomato, and Onion
- A Kosher Dill Pickle spear served on the side
- Served on a toasted White or Wheat sub roll.
View Full – Firehouse Subs Menu With Price
💰 Estimated Pricing
Prices vary by location and delivery service.
- Small: $6.29 – $7.49
- Medium: $9.49 – $10.99
- Large: $13.99 – $15.99
📊 Nutrition Table
Values are based on a standard “Fully Involved” preparation on White Bread.
| Size | Calories | Total Fat (g) | Sodium (mg) | Protein (g) | Carbs (g) |
| Small (4″) | 370 | 19g | 1,270mg | 23g | 27g |
| Medium (8″) | 740 | 39g | 2,270mg | 45g | 55g |
| Large (12″) | 1,140 | 58g | 3,280mg | 68g | 87g |
⚠️ Allergen List
The following allergens are present in the standard Corned Beef sub:
- ✅ Wheat / Gluten (Roll)
- ✅ Milk / Dairy (Provolone Cheese)
- ✅ Egg (Mayonnaise)
- ✅ Mustard (Deli Mustard)
- ✅ Soy (Often present in the bread or oils)
FAQs
What does “Fully Involved” mean?
At Firehouse Subs, “Fully Involved” means mayo, deli mustard, lettuce, tomato, onion, and a pickle spear on the side.
Is the corned beef lean?
Firehouse uses USDA Choice corned beef brisket. It’s flavorful and fairly lean, but it does contain a lot of sodium.
Why is the sodium content high?
Corned beef is cured with salt, which raises sodium levels. Skipping mustard or pickles can help reduce it.
Is there a gluten-free option?
Yes. The corned beef is gluten-free, and most locations offer a gluten-free roll for an extra charge. You can also choose Sub-in-a-Tub.
Can I change the cheese?
Yes. Provolone is standard, but you can swap it for Swiss, Cheddar, or Pepper Jack, or remove the cheese.
