instant pot pot roast frozen

BY azeddine massafi February 28, 2026

instant pot pot roast, a modern marvel that transforms humble ingredients into a deeply satisfying and unbelievably tender weeknight dinner. Imagine succulent beef falling apart at the touch of a fork, infused with the rich flavors of aromatic vegetables and savory herbs. This pressure cooker method shaves hours off the traditional cooking time, delivering a comforting classic with minimal effort. Ready to unlock the secret to consistently perfect pot roast? Gather ’round, let’s cook!

Ingredient Deep Dive

IngredientQuantityNotes
Chuck Roast3-4 poundsWell-marbled for best flavor
Olive Oil2 tablespoonsFor searing
Yellow Onion1 largeRoughly chopped
Carrots3 largeCut into 1-inch pieces
Celery3 stalksCut into 1-inch pieces
Garlic4 clovesMinced
Beef Broth3 cupsLow sodium preferred
Tomato Paste2 tablespoonsAdds depth of flavor
Worcestershire Sauce2 tablespoonsUmami booster
Dried Thyme1 teaspoonEarthy aroma
Dried Rosemary1 teaspoonAdds a piney note
Bay Leaf1For subtle flavor infusion
SaltTo tasteKosher salt recommended
Black PepperTo tasteFreshly ground is best
Potatoes1.5 poundsYukon Gold or Red Potatoes, quartered
Cornstarch1-2 tablespoonsFor thickening gravy (optional)

Substitutions & Swaps

Don’t have chuck roast? Use brisket or round roast as alternatives. For a vegetarian version, try large portobello mushrooms, ensuring they’re browned well. Beef broth can be swapped with vegetable broth for a lighter flavor. If you’re out of Worcestershire sauce, a splash of soy sauce will work in a pinch. Experiment with other herbs like oregano or marjoram to customize your flavor profile.

Equipment Guide

The star of the show is, of course, the Instant Pot. A 6-quart or 8-quart model will work perfectly. You’ll also need a large cutting board, a sharp knife for prepping the vegetables, measuring spoons and cups, and a serving platter for the finished pot roast. Tongs are helpful for handling the hot roast after cooking. A fat separator can be useful for degreasing the gravy, but it’s not essential.

Step-by-Step Walkthrough

Step 1: Sear the Roast: Set your Instant Pot to the “Sauté” function. Add olive oil and let it heat up. Season the chuck roast generously with salt and pepper. Sear the roast on all sides until deeply browned, about 3-4 minutes per side. This step is crucial for developing flavor.

Step 2: Sauté Aromatics: Remove the roast from the Instant Pot and set aside. Add the chopped onion, carrots, and celery to the pot and sauté until softened, about 5-7 minutes. Add the minced garlic and cook for another minute until fragrant.

Step 3: Deglaze and Combine: Pour in the beef broth to deglaze the pot, scraping up any browned bits from the bottom. Stir in the tomato paste and Worcestershire sauce. Add the dried thyme, rosemary, and bay leaf.

Step 4: Pressure Cook: Return the seared roast to the Instant Pot. Ensure the roast is mostly submerged in liquid. Secure the lid and set the Instant Pot to “Pressure Cook” (or “Manual”) mode on high pressure for 60-75 minutes. The cooking time will depend on the size of your roast; use 15 minutes per pound as a general guideline.

Step 5: Natural Pressure Release: Allow the Instant Pot to naturally pressure release for 15-20 minutes. After the natural pressure release, carefully release any remaining pressure manually.

Step 6: Add Potatoes: Open the Instant Pot and add the quartered potatoes. Secure the lid again and cook on “Pressure Cook” (or “Manual”) mode on high pressure for 5 minutes.

Step 7: Quick Pressure Release: Perform a quick pressure release.

Step 8: Thicken Gravy (Optional): Remove the roast and vegetables from the Instant Pot and set aside. If the gravy is too thin, whisk together cornstarch with a little cold water to create a slurry. Stir the slurry into the gravy and simmer using the “Sauté” function until thickened.

Step 9: Serve: Shred the pot roast with two forks. Serve it with the cooked vegetables and gravy. Enjoy!

Expert Tips & Troubleshooting

Don’t skip the searing! It adds a crucial depth of flavor and creates fond (browned bits) on the bottom of the pot, which contributes to a richer gravy. If the roast is tough, it likely wasn’t cooked long enough. Next time, increase the pressure cooking time by 10-15 minutes. For a richer gravy, use red wine along with the beef broth, simmering it for a few minutes before adding the roast. If the gravy is too salty, add a teaspoon of brown sugar or a splash of apple cider vinegar to balance the flavors.

Flavor Variations

For a spicier pot roast, add a pinch of red pepper flakes or a chopped jalapeño to the vegetables. Try adding mushrooms to the pot for an earthier flavor – cremini or button mushrooms work well. A splash of balsamic vinegar can add a touch of sweetness and acidity. For a more complex flavor, use a combination of beef broth and red wine. You can also experiment with different herbs, such as oregano or marjoram.

Storage & Reheating

Leftover pot roast can be stored in an airtight container in the refrigerator for up to 3-4 days. To reheat, simply warm it up in a saucepan over medium heat, adding a little beef broth or water if needed to keep it moist. You can also reheat it in the microwave. For longer storage, you can freeze the pot roast for up to 2-3 months. Thaw it in the refrigerator overnight before reheating.

instant pot pot roast

FAQ Section

Q: Can I use frozen roast?

A: While it’s best to use a thawed roast for even cooking, you can cook a frozen roast in the Instant Pot. Increase the cooking time by 50%. Make sure the roast is fully submerged in liquid.

Q: Can I add other vegetables?

A: Absolutely! Add turnips, parsnips, or sweet potatoes for variety. Add them along with the potatoes for even cooking.

Q: How do I make the gravy thicker?

A: If the gravy isn’t thick enough after cooking, use a cornstarch slurry (cornstarch mixed with cold water) to thicken it. Simmer on the “Sauté” function until thickened.

Q: Can I make this without potatoes?

A: Yes, you can omit the potatoes. If you do, you may want to reduce the final cooking time slightly since you won’t be adding the potatoes in the last step.

Nutrition Information

NutrientAmount (per serving, estimated)
CaloriesApproximately 450-550
Protein40-50g
Fat25-35g
Carbohydrates20-30g
Fiber5-7g

Disclaimer: Nutritional information is approximate and may vary based on specific ingredients and portion sizes. Always consult with a healthcare professional or registered dietitian for personalized dietary advice.

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