Instant Pot Pot Roast with Mashed Potatoes and Gravy

User Reviews

4.9

226 reviews
Excellent
  • Prep Time

    30 mins

  • Cook Time

    1 hr

  • Total Time

    1 hr 30 mins

  • Servings

    8 people

  • Calories

    383 kcal

  • Course

    Main Course

  • Cuisine

    American

Instant Pot Pot Roast with Mashed Potatoes and Gravy

This recipe prepares a pot roast cooked in an Instant Pot along with red-skinned potatoes that become tender enough for creamy mashed potatoes. The roast is browned first to develop flavor, then pressure-cooked with onion soup mix and beef broth, creating a rich base for the accompanying gravy. The potatoes are mashed with sour cream and garlic, adding a creamy and savory touch to the side.

Description

Instant Pot Pot Roast with Mashed Potatoes and Gravy combines slow-cooked beef roast with tender red-skinned potatoes prepared in a pressure cooker for efficiency. The chuck or rump roast is salted, peppered, browned to seal in flavors, then cooked under pressure alongside potatoes, onion soup mix, and beef broth. After cooking, the roast is shredded and the cooking liquid strained before being thickened into a gravy. The potatoes are hand-mashed with sour cream, garlic, salt, and pepper until creamy. This method yields a hearty and comforting meal with tender meat and flavorful mashed potatoes.

The flavor is savory with depth from the onion soup mix and beef broth. The creamy mashed potatoes balance the robust meat. The gravy made from the cooking juices ties the elements together with rich seasoning and a smooth texture. Cooking in the Instant Pot speeds the process compared to traditional slow roasting while still delivering tender results.

This dish can be served as a main course, pairing the shredded beef and gravy with mashed potatoes, making it a filling family meal. The recipe includes homemade onion soup mix as a substitute and careful instructions for natural and quick pressure release to maximize flavor and tenderness.

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Ingredients

Servings
  • 2-3 pounds chuck roast cut into 4-inch sections, or rump roast
  • salt
  • black pepper
  • 2 tablespoons neutral cooking oil generic cooking oil
  • 2 dry onion soup mix see note for homemade version, packets
  • 2 cups beef broth
  • 6-8 potato quartered, with skins on, red

Mashed Potatoes

  • 8 ounces sour cream
  • 2 teaspoons garlic or 1 teaspoon garlic powder, minced
  • 1 teaspoon salt
  • ¼ teaspoon black pepper

Gravy

  • cup corn starch + cold water; 4 tablespoons
  • 1 teaspoon salt
  • ¼ teaspoon black pepper

Instructions

  1. Set instant pot/pressure cooker to saute. Salt and pepper the meat generously all over. Drizzle oil in the pot and add meat chunks, allowing to brown for 2-3 minutes, then flip over and sear on the other side for 2-3 minutes. Sprinkle onion soup mix over the meat, add potatoes and broth. 
  2. Cover, make sure vent is set to sealed position, and set to PRESSURE COOK or MANUAL for 60 minutes. Do a natural release for 15-20 minutes (don't do anything, just let it naturally depressurize) then quick release (turn valve to VENT) and remove lid once float valve drops down. 
  3. Transfer beef to a serving platter and shred with two forks. Use a strainer to remove any fat or large bits from the liquid in the pressure cooker. Set to SOUP setting and move on with the next step. 
  4. Transfer potatoes to a large bowl. Add sour cream, salt, pepper, and garlic and hand mash or use an electric hand mixer until creamy and smooth. 
  5. By now the liquid in the pot should be boiling. Whisk together cold water and corn starch and stir into the boiling liquid. Season with salt and pepper (taste, add more if needed) and serve over mashed potatoes. 

From Frozen

  1. Follow instructions above, but do not cut meat into sections (since it's frozen and very hard to cut through) and skip the searing step. Pressure cook for 90 minutes. 

Notes

  • For a homemade onion soup mix substitute, combine dehydrated onion flakes, beef bouillon granules, onion powder, dried parsley, black pepper, celery seed, and paprika as directed.
  • Allow the Instant Pot to naturally release pressure for 15-20 minutes before quick releasing to preserve tenderness.
  • Straining the cooking liquid before making the gravy helps remove fat and solids for a smoother sauce.
  • Use red-skinned potatoes with the skins on for texture and nutrients in the mashed potatoes.

Nutrition Information

Show Details
Calories 383kcal (19%) Carbohydrates 32g (11%) Protein 30g (60%) Fat 15g (23%) Saturated Fat 6g (30%) Cholesterol 85mg (28%) Sodium 940mg (39%) Potassium 1186mg (25%) Fiber 3g (12%) Sugar 3g (6%) Vitamin A 188IU (4%) Vitamin C 14mg (16%) Calcium 74mg (7%) Iron 4mg (22%)

Nutrition Facts

Serving: 8people

Amount Per Serving

Calories 383 kcal

% Daily Value*

Calories 383kcal 19%
Carbohydrates 32g 11%
Protein 30g 60%
Fat 15g 23%
Saturated Fat 6g 30%
Cholesterol 85mg 28%
Sodium 940mg 39%
Potassium 1186mg 25%
Fiber 3g 12%
Sugar 3g 6%
Vitamin A 188IU 4%
Vitamin C 14mg 16%
Calcium 74mg 7%
Iron 4mg 22%

* Percent Daily Values are based on a 2,000 calorie diet.

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4.9

226 reviews
Excellent

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