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Copycat Firehouse Subs New York Steamer Sandwich

This Copycat Firehouse Subs New York Steamer Sandwich is everything you love about the original and more! The addition of homemade pastrami and corned beef makes the flavors even more crave-worthy. Serve on a toasted bun with melted provolone for the best New York Steamer ever!

A copycat Firehouse Subs New York Steamer sandwich.

After one bite of this Copycat Firehouse Subs New York Steamer Sandwich, you may never want to go back to the original again! Don’t get me wrong, I adore the Firehouse Subs version, but the addition of homemade pastrami and homemade corned beef just can’t be beaten.

What Is A New York Steamer Sandwich?

This pastrami and corned beef sandwich is served on a toasty bun with melted provolone, mayo, spicy mustard, and a little Italian dressing. It’s a glorious combination of flavors that only takes minutes to assemble.

What you’ll love about A New York Steamer Sandwich


  • Make it in the oven or on a Blackstone Griddle.
  • Homemade corned beef and homemade pastrami add incredible flavor.
  • Ready in minutes!

 INGREDIENTS

  • Homemade pastrami — Homemade is best, but deli pastrami can work too.
  • Homemade corned beef — Again, homemade has the richest flavor, but you can also pick it up from the deli.
  • Submarine sandwich bun
  • Italian dressing — Squirt on the sandwich or serve on the side for dipping.
  • Mayonnaise
  • Melted provolone
  • Spicy mustard
A New York Steamer sandwich cut in half.

HOW TO MAKE Copycat Firehouse Subs New York Steamer Sandwich

  1. Start with a nice, fresh submarine sandwich bun.
  2. Layer corned beef, pastrami, and provolone on the bottom bun.
  3. Place both sides of the sandwich under the broiler until the cheese is melted and the bread is toasty.
  4. Add mayo and mustard to the top bun.
  5. Squirt Italian Dressing over the cheese, then close the sandwich and enjoy!

HOW TO MAKE ON A BLACKSTONE GRIDDLE

  1. Heat the griddle as per manufacturer directions to medium.
  2. Butter the buns.
  3. Lay the buns on the griddle, buttered-side down, until toasted. 
  4. Warm the meat on the griddle.
  5. Layer the meat onto the sandwich, top with cheese, and cover with a cooking dome to melt the cheese (you can add a squirt of water under the dome to steam the bun and melt the cheese).
  6. Add mustard and mayo to the top bun before serving.

Chef Jenn’s Tips

  • This New York Steamer sandwich recipe is super easy to double or triple – or more – to feed the whole family or a crowd.
  • For the best flavor, use bakery-fresh bread and quality pastrami and corned beef.
  • Don’t like spicy mustard? Use whatever mustard you prefer.

Recommended

MAKE IT A MEAL

Of course, I always love a pastrami sandwich or corned beef sandwich with chips or fries on the side, and this sandwich is no different. But if you’re looking for freshness, this Mexican Street Corn Salad is full of flavor. Or add a little green to your plate with this Broccoli Salad with Bacon, Almonds, and Orange. If you’re craving a soup and sandwich combo, check out Cream of Leek and Green Garlic Soup, Smoked Chicken Tortilla Soup, or Cream of Jalapeño Soup, and wash it all down with this sima recipe for homemade soda!

VARIATIONS FOR THIS PASTRAMI AND CORNED BEEF SANDWICH

I know I’ve said it repeatedly, but once you try homemade pastrami or corned beef, it’s hard to return to the deli version. That said, if you’re craving a Copycat Firehouse Subs New York Steamer sub and don’t have time to make your meats, that’s okay! Go ahead and pick up what you need from the deli and enjoy.

Prefer mozzarella or Swiss cheese? Any mild cheese that will melt well can be used in place of the provolone. And if you don’t like spicy mustard, go ahead and use regular or Dijon instead!

A top-down image of a New York Steamer sandwich.

STORAGE

Unfortunately, hot sandwiches don’t keep very well; this one is no exception. The bread will get soggy, the melted cheese will get gloopy, and it won’t be hot and fresh. That’s why I always recommend eating this one right out of the oven or off the Blackstone Griddle!

Honestly, it’s so easy to assemble this sandwich in a matter of minutes, and you wouldn’t save much time making it ahead anyway. Corned beef, pastrami, cheese, bread, spicy mustard, mayo, and Italian dressing all keep well in the fridge or pantry, so they can be ready to go any time.

Not sure you’ll finish a whole sandwich? Just cut the bread in half, store the half you aren’t using, and assemble a smaller sandwich for yourself. That way, you can enjoy the whole thing without worrying about any of it going to waste!

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A copycat Firehouse Subs New York Steamer sandwich.
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4.75 from 8 votes

Copycat Firehouse Subs New York Steamer Sandwich

Loaded with pastrami and corned beef, this hearty and meaty sandwich is better than the original!!
Course Main Course
Cuisine American
Keyword chicken sandwich, firehouse subs, new york steamer, new york steamer sandwcih, sub, sub sandwich
Prep Time 3 minutes
Cook Time 5 minutes
Total Time 8 minutes
Servings 1 servings
Calories 611kcal
Author Chef Jenn

Ingredients

  • 1 submarine bun
  • 2 ounces corned beef thinly sliced
  • 2 ounces pastrami thinly sliced
  • 2 slices provolone cheese
  • 1 tablespoon spicy mustard
  • 1 tablespoon mayonnaise
  • 1 tablespoon Italian dressing

Instructions

  • Slice the submarine bun in half lengthwise.
  • Layer corned beef, pastrami, and provolone on the bottom bun.
  • Place both sides of the sandwich under the broiler until the cheese is melted and the bread is toasty.
  • Add mayo and mustard to the top bun.
  • Squirt Italian Dressing over the cheese, then close the sandwich and enjoy!

Notes

Chef Jenn’s Tips

  • This New York Steamer sandwich recipe is super easy to double or triple – or more – to feed the whole family or a crowd.
  • For the best flavor, use bakery-fresh bread and quality pastrami and corned beef.
  • Don’t like spicy mustard? Use whatever mustard you prefer.

Nutrition

Serving: 1sandwich | Calories: 611kcal | Carbohydrates: 37g | Protein: 35g | Fat: 35g | Saturated Fat: 11g | Polyunsaturated Fat: 9g | Monounsaturated Fat: 11g | Trans Fat: 0.04g | Cholesterol: 89mg | Sodium: 2224mg | Potassium: 387mg | Fiber: 2g | Sugar: 6g | Vitamin A: 359IU | Vitamin C: 35mg | Calcium: 315mg | Iron: 14mg

A Note on Nutritional Information

Nutritional information for this recipe is provided as a courtesy and is calculated based on available online ingredient information. It is only an approximate value. The accuracy of the nutritional information for any recipe on this site cannot be guaranteed.

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4 thoughts on “Copycat Firehouse Subs New York Steamer Sandwich”

  1. 5 stars
    The combination of the mustard and mayo with the Italian dressing worked so well with the rest of the sandwich. It was a real winner around here!!

    Reply
  2. 5 stars
    This sounds like the perfect Saturday movie meal fir the family! I’ll make it with homemade sub buns and check the deli counter for corned beef!

    Reply

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