Instant Pot Mississippi Pot Roast

If you’re craving a fall-apart tender, flavor-packed dinner without waiting all day, this Instant Pot Mississippi Pot Roast is it. I first shared this recipe back in 2019, and since then it’s been viewed over 1 million times, making it the most popular recipe on my site.

It’s easy to see why. You get juicy beef, a rich buttery gravy, and bold, tangy flavor — all with just a handful of ingredients. No long prep, no babysitting, and no need to turn your kitchen upside down. The Instant Pot does the heavy lifting, and you’re left with a comforting meal that works just as well for busy weeknights as it does for cozy weekends.

If you’re a fan of low-effort comfort food, this is one of those recipes you’ll come back to again and again.

Why Make Mississippi Pot Roast in the Instant Pot?

Traditional pot roast takes 6–8 hours to cook. This version is done in about 90 minutes from start to finish, and the results are just as tender.

The pressure cooker breaks down the chuck roast quickly, infusing it with flavor while keeping the meat juicy. It’s one of those “dump, cook, and walk away” recipes that actually delivers.

And leftovers? Even better. This makes a big batch, perfect for meal prep. Serve it over mashed potatoes one night, tuck it into sandwiches the next, or freeze it for later. One cook, multiple meals.

What Is Mississippi Pot Roast?

Mississippi pot roast is a simple but incredibly flavorful beef dish made with chuck roast, ranch seasoning, au jus mix, butter, and pepperoncini peppers.

It’s known for its:

• fall-apart tender beef
• buttery, savory gravy
• tangy kick from pepperoncini juice

There’s no searing required and no complicated steps — just layer everything in the pot and let it cook. It’s comfort food at its easiest.

Is Mississippi Pot Roast Spicy?

Not really. Pepperoncini peppers add tang, not heat. They balance the richness of the beef without making the dish spicy.

If you’re sensitive to spice, you can use fewer peppers — but don’t skip the juice. That acidity helps tenderize the meat and brings the whole dish together. If you want to dial things back even more, reduce or skip the black pepper.

Ingredients You’ll Need

• Chuck Roast (3-4 pounds, 1-2 inches thick): Well-marbled chuck roast is key. The fat keeps the meat juicy and helps it shred easily after cooking. If your roast is thicker than 2 inches, adjust the cook time: 60 minutes for 3 lbs, adding 10 minutes per extra pound (e.g., 4 lbs = 70 min, 5 lbs = 80 min).
• Oil (optional): Olive oil, avocado oil, or any neutral oil if you choose to sear.
• Ground Pepper: Adds a subtle kick — optional if you prefer it mild.
• Onion: Adds savory depth to the gravy.
• Beef Broth: I use Better Than Bouillon beef base mixed with water for extra flavor, but any beef broth works.
• Butter: Unsalted is best since the seasoning packets already contain salt.
• Ranch Dressing Mix: This is where that signature tangy, herby flavor comes from.
• Au Jus Gravy Mix: Adds richness and depth. Brown gravy mix or onion soup mix can work in a pinch.
• Pepperoncini Peppers + Juice: Don’t skip these — they’re essential to the flavor.

Please scroll ⬇️ to the recipe card for the full ingredient amounts and instructions.

How to Make Instant Pot Mississippi Pot Roast

1. Season the chuck roast with black pepper. (Image 1)
2. (Optional but recommended) Sear the roast on sauté mode for 3–4 minutes per side, then remove. (Images 2, 3)

1. Sauté the onions until softened. (Image 4)
2. Turn off sauté mode, add beef broth, and scrape up the browned bits from the bottom. (Image 5)

1. Return the roast to the pot. Sprinkle with ranch and au jus mix, top with butter, and add pepperoncini peppers and juice. (Image 6)
2. Pressure cook on High for 60–70 minutes, then allow a natural release.

1. If you want a thicker gravy, whisk together cornstarch and water, stir it in, and simmer briefly on sauté. Remove the beef before thickening. (Image 7)
2. Remove the beef, shred it with two forks, and return it to the pot to soak up all that flavorful gravy.

FAQ

Serving Suggestions

Mississippi pot roast is rich and savory, so it pairs best with something that can soak up the gravy.

Some of my go-to options:

• Mashed potatoes, rice, or buttered egg noodles
• Cauliflower rice if you want something lighter
• Simple sides like green beans, carrots, or Brussels sprouts
• Crusty bread for mopping up every last bit of sauce

And if you’re leaning fully into comfort food, it’s hard to beat serving this alongside something creamy like my Instant Pot mac and cheese.

Make Ahead, Store, Freeze, and Reheat

Make Ahead:
Add everything to a freezer bag or directly into the Instant Pot liner and refrigerate for up to 24 hours. When you’re ready, just cook — no extra prep.

Store:
Let the roast cool, then store it with the gravy in an airtight container for up to 4 days. If you add vegetables, keep them separate so they don’t get mushy.

Freeze:
You can freeze the raw ingredients or the fully cooked roast and gravy for up to 3 months. I like freezing it in individual portions for easy meals later.

Reheat:
Reheat gently in a skillet with a splash of broth, or microwave until warmed through. For frozen portions, thaw overnight or reheat in the Instant Pot on High Pressure for 5 minutes with a little liquid.

Leftover Ideas

Leftovers are honestly half the reason I make this.

Some easy ways to repurpose it:

• Pile it onto a toasted bun with provolone for a hot sandwich
• Turn it into tacos with warm tortillas, avocado, and salsa
• Use it as the base for a shepherd’s pie-style bake
• Stuff it into a baked potato with sour cream and cheese
• Chop it up for a breakfast hash with crispy potatoes and peppers

It’s one of those meals that somehow gets better every time you reheat it.

Why This Recipe Works

This is one of those recipes that proves simple doesn’t mean boring. It’s rich, comforting, and incredibly forgiving — perfect if you’re new to the Instant Pot or just want a reliable dinner that always works.

If you’re looking for another cozy, low-effort meal, my Instant Pot Beef Stew is a great one to try next.

RECIPE