Slow cooker 3-ingredient Mississippi pot roast is the kind of recipe that earns a permanent place in a busy cook’s rotation because it delivers deeply savory, tangy, fall-apart beef with almost no hands-on work. This simplified version keeps the spirit of the well-loved Southern-style pot roast—usually built around a chuck roast, pepperoncini, and seasoning—while trimming it down to the essentials, making it especially useful for weeknights, meal prep, or casual Sunday suppers.
Serve this roast with mashed potatoes, buttered egg noodles, rice, or crusty bread to catch the flavorful juices. For balance, add a simple green vegetable like steamed green beans, roasted carrots, or a crisp salad; the bright, briny pepperoncini flavor also pairs nicely with creamy sides such as macaroni and cheese or a scoop of coleslaw.
Slow Cooker 3-Ingredient Mississippi Pot Roast
Servings: 6 to 8
Ingredients
1 boneless beef chuck roast, 3 to 4 pounds
1 packet au jus gravy mix, 1 ounce
6 to 8 whole pepperoncini peppers, plus 1/4 cup pepperoncini brine
Directions
1. Place the chuck roast in the bottom of a black slow cooker. Sprinkle the au jus gravy mix evenly over the top, then add the whole pepperoncini and pour in the pepperoncini brine around the roast.
2. Cover and cook on low for 8 to 10 hours or on high for 5 to 6 hours, until the beef is very tender and easily pulls apart with a fork.
3. Shred the roast directly in the slow cooker with two forks, turning the meat through the juices so it stays moist. Let it sit for 5 to 10 minutes before serving.
4. Serve hot with some of the cooking juices spooned over the top.
Variations & Tips
Add butter for a richer classic version: Many Mississippi pot roast recipes include butter for extra richness. If you want a more traditional flavor and silkier sauce, place 1/4 to 1/2 cup unsalted butter on top of the roast before cooking.
Use a larger roast if needed: A 4- to 5-pound chuck roast works well too, but you may want a few extra pepperoncini and a slightly longer cooking time. The roast is done when it shreds effortlessly rather than slicing neatly.
Sear first for deeper flavor: Although this recipe is designed for simplicity, browning the roast in a skillet for a few minutes per side before adding it to the slow cooker will create a deeper, more robust beef flavor.
Make sandwiches or bowls: Leftovers are excellent piled onto toasted rolls with provolone, spooned over mashed potatoes, or served over rice bowls. The shredded texture makes this especially versatile for a second meal.
Control the salt level: Because au jus mix can be quite salty, avoid adding extra salt until after cooking and tasting. If you are sensitive to sodium, serve the roast with unsalted sides like plain potatoes or rice.