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Instant Pot Hot Beef Sandwich

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This time of year is the season for the hot sandwich. Warm meat served over bread with gravy. Mashed potatoes on the side makes it even better. Well, today I have an Instant Pot hot beef sandwich for you.

The thing about roasts is they do take a bit to cook in the pressure cooker, but it is way less than a slow cooker. This roasts takes just under 80 minutes to make. You add the potatoes into the instant pot during the last 8 minutes of cooking to cook along with the roast. If you would rather cook them sepreately then you can.

Then you mash those potatoes, slice the roast and mix up the gravy in the Instant Pot. You use the drippings and mix in 2 pacakges of beef gravy mix and some water for the gravy. If needed to thicken it more, you can add some cornstarch mixed with water. You will love this hot roast beef sandwich.

Here is what you need to make the

Instant Pot Hot Beef Sandwich

  • SALT
  • SALT
  • MILK
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Instant Pot Hot Beef Sandwich | realmomkitchen.com

Instant Pot Hot Beef Sandwich

  • Author: Laura
  • Total Time: 105 minutes plus 15 minutes NPR
  • Yield: 6 servings 1x


Units Scale
  • For the roast:
  • 3 lbs beef chuck roast, trimmed of excess fat
  • 1 tsp salt
  • 1 tsp garlic powder
  • 1 cup beef broth
  • 1 cup water
  • 2 pkgs brown gravy dry mix
  • For the mashed potatoes:
  • 3 lbs potatoes, peeled and cubed
  • 1 1/2 tsp salt
  • 3/4 cup milk
  • 3 Tbsp butter
  • 1/2 tsp garlic powder
  • 1/4 cup sour cream
  • For the sandwich:
  • 12 slices of white bread or Texas toast


  1. Rub the salt and garlic powder into the beef roast. Pour broth into Instant Pot and place the chuck roast in the bottom of the pot. 
  2. Cover and lock the lid into place. Make sure valve is set to sealing. Set to cook on manual/pressure for 70 minutes. When time is do a quick pressure release. 
  3. Open the Instant Pot and place a steamer basket on top of the beef. Add the potatoes to the steamer basket. If you don’t have a steamer basket just add the potatoes straight into the Instant Pot. Lock the lid into placeand make sure valve is set to seal. Cook on manual/pressure for 8 minutes. When the time is allow the pressure release naturally for 15 minutes then move to quick release to release any remaining pressure. Remove the lid.
  4.  Add the potatoes into a large bowl and mash. Add in the butter, milk, kosher salt, garlic powder and sour cream and stir/mash until smooth and creamy. 
  5. Move the roast to a cutting board and let it rest. Turn the Instant Pot to the saute setting. Slowly whisk in the water followed by the gravy packages. It will start to thicken in a couple of minutes. To make a thicker gravy add in a cornstarch slurry (in a small bowl stir together 1-2 Tbsp of cornstarch with 1-2 Tbsp of water, until smooth.Then pour the mixture into the Instant Pot. The cornstarch mixture will thicken up contents of pot quickly). Add salt and pepper the gravy to taste.
  6. Slice the roast or shred it. Toast the slices of bread if desired. Place 2 slices of bread on a plate and top with a portion of roast beef on. Scoop some mashed potatoes on the plate. Ladle gravy over the top of the sandwich and mashed potatoes. Serves 6.
  • Prep Time: 20 minutes
  • Cook Time: 85 minutes
  • Category: Beef
  • Method: Instant Pot
  • Cuisine: American

Keywords: instant pot, pressure cooking, beef, beef sandwich

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Recipe adapted from 365 Days of Slow + Pressure Cooking.

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