Last updated: Aug 9, 2026
Illustration for reference only
Firehouse Subs

Prime Rib Steak - Large

Hot Specialty SubsPopular

Large Wheat Sub Roll: ENRICHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), MALTED BARLEY FLOUR, WATER, WHOLE WHEAT FLOUR, SUGAR, YEAST, WHEAT GLUTEN, SOYBEAN OIL, WHEAT BRAN, SALT, DRY HONEY (HONEY, SUGAR), CARAMEL COLOR, CALCIUM PROPIONATE (PRESERVATIVE), VINEGAR, MOLD INHIBITOR (CULTURED WHEAT FLOUR, FERMENTED LACTIC ACID), DOUGH CONDITIONER (ASCORBIC ACID, ENZYMES)

1 Sub (508.6g)
Serving Size
508.6 g
Serving Weight
1,341
Calories
Per serving
79.8 g
Protein
103.4 g
Carbs
71.2 g
Fat

Nutrition Facts

Amount per serving

Calories1,341 kcal
% Daily Value*
Total Fat 71.2 g91%
Saturated Fat 20.5 g102%
Trans Fat 0 g
Cholesterol 217 mg72%
Sodium 4,087 mg178%
Total Carbohydrate 103.4 g38%
Dietary Fiber 10.7 g38%
Total Sugars 15 g
Protein 79.8 g160%
Vitamin A
Vitamin C
Vitamin D
Calcium
Iron
Potassium
Caffeine

* The % Daily Value tells you how much a nutrient in a serving contributes to a daily diet.

Nutrition Breakdown

1,341
kcal
Protein79.8 g (23%)
Carbs103.4 g (30%)
Fat71.2 g (47%)
Estimated calorie contribution using 4 kcal/g for protein and carbohydrates and 9 kcal/g for fat.

Key Nutrients

Protein 79.8 g160%
Fiber 10.7 g38%
Sodium 4,087 mg178%
Sugars 15 g
Saturated Fat 20.5 g102%
How we calculate these values

Ingredients

Large Wheat Sub Roll: ENRICHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), MALTED BARLEY FLOUR, WATER, WHOLE WHEAT FLOUR, SUGAR, YEAST, WHEAT GLUTEN, SOYBEAN OIL, WHEAT BRAN, SALT, DRY HONEY (HONEY, SUGAR),…

Allergens

Contains

WheatMilkEggSoy

May contain

Not listed

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Nutrition data is sourced from our database and may vary by location or preparation.