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Tender Crockpot Mississippi Pot Roast Recipe with Easy Fluffy Mashed Potatoes

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A simple, no-fuss slow cooker Mississippi pot roast paired with creamy, fluffy mashed potatoes. This comforting meal is tender, flavorful, and perfect for cozy dinners.

Ingredients

Scale
  • 3 to 4 pounds chuck roast (well-marbled cut recommended)
  • 1 packet ranch seasoning mix (about 1 ounce)
  • 1 packet au jus gravy mix (about 1 ounce)
  • 1/2 cup unsalted butter (1 stick), sliced into pats
  • 6 to 8 pepperoncini peppers with some juice
  • 2 pounds Yukon Gold potatoes, peeled and cut into chunks
  • 1/2 cup whole milk (warm)
  • 4 tablespoons unsalted butter (room temperature)
  • Salt and freshly ground black pepper to taste
  • Optional: 2 tablespoons sour cream (for extra creaminess)

Instructions

  1. Trim excess fat from the chuck roast, but leave some for flavor and moisture. Pat dry with paper towels.
  2. Optional: Heat 1 tablespoon oil in a skillet over medium-high heat. Sear the roast on all sides until browned, about 3-4 minutes per side.
  3. Place the roast in the slow cooker. Sprinkle ranch seasoning and au jus mix evenly over the meat. Lay pats of butter on top, scatter pepperoncini peppers, and pour about 1/4 cup of the pepper juice over everything.
  4. Cover and cook on low for 8 hours or until the meat is fork-tender. Avoid lifting the lid during cooking.
  5. About 30 minutes before the roast is done, place peeled and chopped potatoes in a large pot. Cover with cold water, add a pinch of salt, and bring to a boil. Cook until tender, about 15-20 minutes.
  6. Drain potatoes well and return to pot or warm bowl. Add warm milk, butter, salt, and pepper. Mash with a potato masher or hand mixer until smooth and fluffy. Stir in sour cream if using.
  7. Remove roast from crockpot and shred or slice. Spoon cooking juices over the top. Serve with a generous scoop of mashed potatoes and garnish with fresh parsley if desired.

Notes

Searing the roast is optional but adds flavor. Use the pepperoncini juice to infuse tanginess. Warm milk before adding to potatoes for fluffiness. Avoid over-mashing potatoes to prevent gluey texture. Save some cooking liquid to mix into mashed potatoes for extra richness. Sauce can be thickened by simmering or adding cornstarch slurry.

Nutrition

Keywords: Mississippi pot roast, crockpot recipe, slow cooker pot roast, mashed potatoes, comfort food, easy dinner, ranch seasoning, pepperoncini

Find it online: https://junomeals.com/tender-crockpot-mississippi-pot-roast-recipe-with-easy-fluffy-mashed-potatoes/