Firehouse Subs Prime Rib Sub Nutrition Review

Firehouse Sub prime rib steak sandwich is a fairly new menu option and may only be available on a limited basis at select locations.

Three sizes are available on Firehouse Subs menu: a small 4″, an 8″ medium-sized sub, and the footlong 12″ sandwich.

There are 400 calories, 22 grams fat, 33 grams carbohydrates, and 22 grams protein in the smallest 4″ steak sandwich.

This is your guide to a detailed overview of the nutrition facts, allergens, and ingredients in the Prime Rib Steak sandwich from Firehouse Subs quick service restaurant.

Nutritional content and calories may vary due to preparation methods and for any menu substitutions.

Firehouse Subs Prime Rib Sub Nutritional Info

Calories

Total calories in the steak sandwich varies by size.

A small 4″ Firehouse Prime Rib Steak sandwich has 400 calories
A medium 8″ Firehouse Prime Rib Steak sandwich has 800 calories
A large 12″ Firehouse Prime Rib Steak sandwich has 1,300 calories

Nearly half of the total calories are derived from dietary fats. Carbohydrates contribute about 30% of the total calories, and the remaining 20% is from protein.

Prime Rib Sub

% calories from fat, carbs and protein

CALORIES FROM fat

50%

CALORIES FROM CARBS

30%

CALORIES FROM Protein

20%

Steak sandwich from Firehouse Subs with text listing calories and other nutrition facts.

FITNESS TIME TO BURN 800 CALORIES (Medium sub)

Run 1 hour 10 minutes
Walk 4 hours 20 minutes
Play Racquetball 1 hour 40 minutes

Estimate based on moderate level of activity by an adult with average BMI.

Steak sandwich with list of calories and nutrients.

Nutrition Facts

Amount per serving in 1 Sub (%DV)

Red indicates %DV is high.

	SMALL	MEDIUM	LARGE
Calories	400	800	1340
Total Fat	22g (28%)	43g (55%)	71g (91%)
Saturated Fat	6g (30%)	12g (60%)	20g (100%)
Cholesterol	60mg (20%)	115mg (38%)	215mg (72%)
Sodium	1260mg (55%)	2510mg (109%)	4090mg (178%)
Carbohydrates	33g (12%)	65g (24%)	103g (37%)
Dietary Fiber	3g (11%)	7g (25%)	11g (39%)
Total Sugars	7g	13g	21g
Protein	22g	44g	80g

%DV based on a 2,000 calorie diet. Calorie needs vary and your %DV may be higher or lower. Provided for informational purposes only. Consult with your physician for dietary or healthcare advice.

Sodium

There is a significant amount of sodium in this steak sandwich.

A small 4″ sub includes nearly 1,300 milligrams of sodium, which exceeds half of the daily value recommended by the FDA.

The large foot-long sandwich includes over 4,000 milligrams of sodium.

Check Firehouse Subs menu with prices and nutrition

What’s on the Prime Rib Steak Sub?

This sandwich is made with slow cooked beef prime rib, provolone, and caramelized onions with a garlic mayo sauce. It’s topped with lettuce, tomato and deli mustard and served on a toasted roll.

Enjoy a crisp dill pickle on the side. You can also customize the sandwich with additional toppings and choice of bread.

Choose white, wheat or gluten-free bread, then top it with select add-ons such as mushrooms, bacon, or pepper hot sauce. Nutritional values vary with any variations to the standard sandwich.

Here is the list of ingredients in the Prime Rib Steak Sub Sandwich from Firehouse Subs.

Ingredients

Steak

Beef Rib Lifter, Water, Corn Starch, Beef Broth Concentrate (beef broth and salt), Montreal Steak Seasoning, Garlic, Extractives of Dill and Paprika and Sunflower Oil, Chicken Seasoning, Smoke Flavor, Garlic Powder, Lemon Powder, Onion Powder

Montreal Steak Seasoning is made with salt, black pepper, dill seed, coriander seed, and red pepper.
Chicken Seasoning is made with salt, flavorings, corn starch, yeast, spice, xanthan gum, silicon dioxide (an anti-caking aid), citrus blend (lemon juice concentrate, baking soda, sodium carbonate), dextrose, sodium phosphates, salt, char flavor (tapioca dextrin, salt, grill Flavor (from sunflower oil), smoke flavor, and silicon dioxide.

Wheat Sub Roll

Enriched Wheat Flour (Wheat Flour, Niacin, Reduced Iron, Thiamine Mononitrate, Riboflavin, Folic Acid), Malted Barley Flour, Water, Sugar, Yeast, Soybean Oil, Salt, Wheat Gluten, Wheat Bran, Dry Honey (Honey, Sugar), Caramel Color, Dough Conditioner (ascorbic acid and enzymes), Calcium Propionate (preservative), Vinegar, Mold Inhibitor (cultured wheat flour, fermented lactic acid)

Provolone Cheese

Pasteurized Milk, Cheese Culture, Salt, Enzymes, Natural Smoke Flavor

Onions

Onions, Maltodextrin, Salt, sugar, Modified Corn Starch, Corn Syrup Solids, Autolyzed Yeast Extract, Onion Juice, Dehydrated Onion, Natural Flavors, Red Wine Extract (Sulfites), Safflower Oil, Disodium Guanylate, Disodium Inosinate, Yeast Extract, Guar Gum, Potato, Maltodextrin, Baking Soda, Tricalcium Phosphate, Spice, Grill Flavor (from Sunflower Oil), Canola Oil, Silicon Dioxide

Vegetables

Tomatoes, Lettuce

Condiments

Mayonnaise: Soybean Oil, Water, Corn Syrup, Egg Yolks, Distilled and Cider Vinegar, Salt, Mustard Seed and Calcium Disodium EDTA, Garlic Seasoning, and Water.

Mustard: Vinegar, Mustard Seed, Salt, and Spices.

Allergens

The steak sub sandwich is made with ingredients that include milk, soy, wheat and gluten.

Check list of allergens in Firehouse Subs sandwiches

Nutrition facts, prices, and ingredients are based on available information as of the date of publication. Restaurants and food manufacturers may change recipes or formulations without notice. Check package labels and ask the product manufacturer or restaurant for the most up-to-date information. Unless otherwise stated, %DV is based on a 2,000 calorie diet. All reports and reviews published on this site are for informational purposes only. NutritionandIngredients.com does not provide healthcare advice or dietary recommendations. Always consult your licensed physician for any healthcare or dietary advice.

Nutrition facts, allergens, and ingredients source: Firehouse Subs