Mississippi Pot Roast Recipe Instant Pot: Pepperoncini-Infused Tenderness in Hours

This Instant Pot version delivers the legendary tender results of Mississippi pot roast in a fraction of the time. The secret lies in pressure cooking, which breaks down the chuck roast while infusing it with pepperoncini flavor.

You’ll achieve fall-apart meat with rich, savory juices perfect for serving over mashed potatoes or egg noodles. The method preserves all the traditional taste without the all-day wait.

Ingredients for Mississippi Pot Roast Recipe Instant Pot

Pressure cooker magic turns humble chuck roast into legendary tenderness with minimal effort.

The chuck roast is non-negotiable here—its marbling renders into the juices under pressure, creating that signature fall-apart texture. Source from Costco or Whole Foods for well-marbled cuts. Avoid leaner options like sirloin, which dry out. For the pepperoncini, Mezzetta brand offers consistent quality and flavor. The dry mixes (au jus and ranch) may seem processed, but they’re key to the dish’s signature taste profile.

Out of ranch mix? Use 1 tsp each dried dill, parsley, and garlic powder plus 0.5 tsp onion powder. No au jus? Substitute 1 tbsp soy sauce plus 1 tsp Worcestershire. The beef broth can be homemade if preferred. For a richer sauce, add an extra pat of butter at the end. Carrots and onions can be swapped for other root vegetables like parsnips or potatoes.

Leftovers keep in the fridge for 4-5 days or freeze for up to 3 months. The flavors deepen overnight, so it tastes even better the next day. Reheat gently on the stove with a splash of broth to maintain moisture. Perfect for meal prep—portion into containers with mashed potatoes for easy lunches.

Step-by-Step Instructions for Mississippi Pot Roast in an Instant Pot

This method ensures fall-apart tenderness with minimal hands-on time and maximum flavor.

Step 1: Sear the Chuck Roast Chunks

Select the “Sauté” function on your Instant Pot and add the 1 tablespoon olive oil. Once the oil shimmers, add the 3 lb chuck roast chunks in a single layer, ensuring not to overcrowd the pot. I sear in batches if necessary to achieve proper browning.

Sear the chuck roast for 3-4 minutes per side until deeply browned on all surfaces. This develops a rich fond that will intensify the flavor of your finished dish. The meat should release easily from the pot when properly seared—don’t force it.

Transfer the seared chuck roast to a plate and set aside. The residual oil and browned bits in the pot will serve as the flavor foundation for the next steps.

Step 2: Build the Flavor Base

In the same Instant Pot, add the quartered 1 whole yellow onion, 5 cloves garlic cloves, and 3 whole carrots. Sauté for 2-3 minutes until the onions begin to soften and the garlic becomes fragrant. This step ensures the aromatics release their essential oils.

Sprinkle the 1 package au jus mix, 1 package dried ranch seasoning mix, 1 teaspoon kosher salt, 1 teaspoon black pepper, and 0.5 teaspoon dried thyme over the vegetables. Stir to coat everything evenly, allowing the spices to bloom in the residual heat.

Add the 0.75 cup pepperoncini peppers and pour in the 0.5 cup beef broth. Use a wooden spoon to scrape up any browned bits from the bottom of the pot—this deglazing step is crucial for preventing the “burn” notice on your Instant Pot.

Step 3: Pressure Cook to Perfection

Return the seared chuck roast to the Instant Pot, arranging the chunks evenly over the vegetables and spices. Place the 0.5 cup unsalted butter pats on top of the chuck roast. The butter will melt during cooking, infusing every bite with richness.

Secure the lid and set the valve to “Sealing.” Select the “High Pressure” function and set the timer for 60 minutes. The pot will take approximately 10-15 minutes to come to pressure before the cooking time begins.

Once the cooking cycle completes, allow the pressure to release naturally for 15 minutes, then manually release any remaining pressure. This natural release period prevents the chuck roast from seizing up and ensures it remains tender.

Step 4: Shred and Serve

Carefully remove the lid and use two forks to shred the chuck roast directly in the pot. The meat should pull apart with minimal effort—a sign of perfect doneness. Stir the shredded chuck roast into the cooking liquid to coat it evenly with the flavorful sauce.

Let the pot roast sit for 5-10 minutes to absorb the liquid before serving. This resting time allows the flavors to meld and the meat to reabsorb some of the juices, ensuring each serving is moist and packed with flavor.

Serve the Mississippi pot roast hot, with some of the cooking liquid spooned over the top. The carrots and onions will be tender and infused with the tangy, savory flavors of the pepperoncini and spices.

Health Benefits of This mississippi pot roast recipe instant pot

Rich Protein Source

This dish delivers a powerful protein punch with the 3 lb chuck roast, providing about 45 grams of protein per serving. Protein is essential for muscle repair and growth, keeping you full and energized throughout the day. I love that it fuels my active lifestyle so effectively. 💪

Iron-Rich Benefits

Beef is naturally rich in heme iron, which your body absorbs more easily than plant-based iron. A single serving of this creation offers about 3.5 mg of iron, or nearly 20% of your daily needs. This helps prevent fatigue and supports healthy blood circulation.

Vitamin B12 Boost

The chuck roast in this recipe is packed with vitamin B12, crucial for nerve function and red blood cell production. You’ll get approximately 6 micrograms per serving, which is 250% of the daily value. This vitamin is especially important for vegetarians to supplement.

Zinc for Immunity

You’ll find a healthy dose of zinc in this meal, with each serving providing about 7 mg or 64% of your daily requirement. Zinc supports immune function and helps with wound healing. I notice I feel more resilient when I include zinc-rich foods like this regularly.

Collagen from Connective Tissue

The slow cooking process breaks down collagen in the chuck roast’s connective tissue into gelatin. This provides amino acids like glycine and proline, which support joint health and digestion. The 60-minute pressure cook maximizes this benefit.

Low-Carb Friendly

With no added sugars and only naturally occurring carbs from the vegetables, each serving contains approximately 6 grams of net carbs. This makes the dish suitable for low-carb and keto diets when served without high-carb sides. 🥗

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