Instant Pot Bottom Round Roast Recipe: Mississippi-Style Pepperoncini Flavor

This Mississippi-style bottom round roast transforms a tough cut into a tender, flavorful centerpiece with minimal effort. The Instant Pot works its magic in under 2 hours, infusing the meat with tangy pepperoncini and savory ranch seasoning.

The key is searing the beef first to develop deep flavor, then pressure cooking until it falls apart at the touch of a fork. This method guarantees restaurant-quality results without the long braising time of traditional roasts.

You’ll end up with melt-in-your-mouth beef swimming in a rich, pepperoncini-spiked gravy that’s perfect for serving over mashed potatoes or with crusty bread. The entire process stays hands-off once the lid is sealed.

This approach proves that budget-friendly cuts can deliver exceptional flavor when given the right treatment. Here’s how to make it.

Ingredients for Instant Pot Bottom Round Roast

A tough cut becomes a tender masterpiece with these bold, savory ingredients. Nothing fancy, just big flavor.

The beef is the star here. Bottom round roast is lean but tough—look for good marbling at the store. Costco has great prices on large cuts (I break them down into 3-lb portions for the freezer). Whole Foods or a local butcher will have high-quality options too. Don’t skip trimming the fat—it prevents the gravy from getting greasy. The pepperoncini? Grab a 16 oz jar—you’ll use most of it.

No ranch packets? Mix 1 tbsp each dried dill, parsley, and onion powder with 2 tsp garlic powder and 1 tsp each salt and pepper. Au jus can be swapped for 1 tbsp soy sauce plus 1 cup extra beef broth. Out of pepperoncini? Banana peppers work in a pinch. For extra richness, add a splash of red wine with the broth (the alcohol cooks off).

Leftovers taste even better the next day. Store in the fridge for up to 5 days or freeze for 3 months. The gravy thickens as it cools—just reheat with a splash of water. Perfect for sandwiches or over mashed potatoes (worth making extra).

Step-by-Step Instructions for Mississippi-Style Instant Pot Roast

This method transforms the bottom round roast into fall-apart tender perfection with minimal effort.

Step 1: Sear the Roast and Sauté Aromatics

Set your Instant Pot to the Sauté function on Normal/High heat. Add 1 tablespoon Olive Oil and wait until it shimmers. Pat the 3 lb Bottom Round Roast dry, then season generously with the 1 tsp Kosher Salt and 1 tsp Black Pepper.

Sear the roast for 3-4 minutes per side until deeply browned on all surfaces. Remove and set aside. In the same pot, add the remaining 1 tablespoon Olive Oil, the 1 whole Yellow Onion (sliced into wedges), and the 6 cloves Garlic Cloves (smashed). Sauté for 2-3 minutes until the onion softens and the garlic becomes fragrant.

Real talk: Don’t rush the sear—this builds the flavor foundation. If the fond starts to burn, deglaze with a splash of the 1.5 cups Beef Broth.

Step 2: Build the Flavor Base

Pour in the 1.5 cups Beef Broth, scraping the bottom to release all those browned bits. Stir in the 1 package Ranch Seasoning Mix, 1 package Au Jus Gravy Mix, 1 tbsp Dijon Mustard, 1 tbsp Worcestershire Sauce, and 1 tsp Dried Thyme.

Return the seared roast to the pot, then add the 1 cup Pepperoncini Peppers (whole, with their juice). The liquid should come about halfway up the roast—if it doesn’t, add a splash more broth. This ensures even cooking and maximum flavor infusion.

Step 3: Pressure Cook to Tenderness

Secure the lid, set the valve to Sealing, and pressure cook on High for 60 minutes. Let the pressure release naturally for 15 minutes, then quick-release any remaining pressure. The roast is done when it shreds easily with a fork.

Here’s the thing—bottom round is lean, so it needs this full cooking time to break down properly. If it’s not fork-tender after 60 minutes, seal it back up and cook for another 10-15 minutes. Don’t skip the natural release; it prevents the meat from seizing up.

Step 4: Make the Gravy and Finish

Remove the roast and set it aside. Skim any excess fat from the cooking liquid, then whisk in the 2 tbsp All-Purpose Flour and 2 tbsp Unsalted Butter to create a slurry. Simmer on Sauté mode for 3-5 minutes until the gravy thickens to your liking.

Slice or shred the roast against the grain, then return it to the pot to soak up the gravy. Let it sit for 5-10 minutes before serving. This resting step ensures the meat reabsorbs some of the juices, keeping it moist and flavorful.

Regional Styles of This Recipe

Southern Mississippi Style

The classic version that started it all uses ranch seasoning and pepperoncini for that signature tangy kick. This is the style that made the dish famous across potlucks in the Magnolia State. I love how the peppers mellow during cooking while keeping their bright flavor. 🗺️

Texas Chili-Inspired

Add 1 tbsp chili powder and 1 tsp cumin to the seasoning mix for a Southwestern twist. Swap half the beef broth for dark beer like Shiner Bock. The result is deeper, smokier flavor that still lets the beef shine.

Italian-American Fusion

Replace ranch seasoning with 1 tbsp Italian seasoning and add 8 oz sliced mushrooms when sautéing onions. Use mozzarella pearls instead of pepperoncini for a cheesy, herby variation that tastes like Sunday dinner at Nonna’s.

French Onion Adaptation

Caramelize 2 large onions (about 20 minutes) before adding other ingredients. Stir in 1 tbsp balsamic vinegar with the broth. Top with Gruyère cheese before serving for a rich, onion-forward take.

Spicy Cajun Kick

Rub the roast with 2 tbsp Cajun seasoning (I use Tony Chachere’s) before searing. Add 1 diced jalapeño with the onions. The heat builds gradually and pairs perfectly with the pepperoncini’s tang. ⚡

Asian-Inspired Twist

Swap ranch for 1 tbsp soy sauce and 1 tbsp grated ginger. Add 1 cup sliced shiitake mushrooms and 2 tbsp hoisin sauce with the broth. The umami depth is incredible with the beef’s richness.

Frequently Asked Questions