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Shredded beef with onions and peppers in a slow cooker, stirred with a wooden spoon—perfect for making savory Slow Cooker Mississippi pot roast.
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Slow Cooker Mississippi Pot Roast

A tender, flavorful slow-cooked roast with rich gravy, savory spices, and tangy pepperoncini—perfect for a comforting, no-fuss meal.
Prep Time15 minutes
Cook Time8 hours
Total Time8 hours 15 minutes
Course: Dinner, Main Course
Cuisine: American
Keyword: Slow Cooker Mississippi Pot Roast
Servings: 8 servings
Calories: 561kcal
Author: Alicia

Equipment

  • 1 cast iron skillet (preferred)
  • 1 Crockpot

Ingredients

  • 4 lb beef chuck roast
  • 1-2 Tablespoons avocado oil
  • 2 sweet onions sliced 1-inch thick
  • 3 5 cloves garlic minced
  • 1 1 oz packet ranch dressing mix
  • 1 0.87 oz packet brown gravy mix
  • 1 cup sliced pepperoncini or 8 whole, plus 1/2 cup juice from the jar
  • 1 stick 1/2 cup unsalted butter
  • 1 1/2 cups beef broth

Instructions

Sear the Roast

  • Heat a cast iron skillet over medium-high heat.
  • Once hot, add the avocado oil and sear the chuck roast for 5–8 minutes per side, until deeply browned.
    1-2 Tablespoons avocado oil, 4 lb beef chuck roast

Assemble in the Slow Cooker

  • Transfer the roast to the slow cooker and arrange the onion slices around it.
    2 sweet onions
  • Sprinkle the roast with the ranch seasoning and gravy mix.
    1 1 oz packet ranch dressing mix, 1 0.87 oz packet brown gravy mix
  • Top with the minced garlic and butter slices.
    3 5 cloves garlic, 1 stick 1/2 cup unsalted butter
  • Pour in the pepperoncini juice and beef broth.
    1 cup sliced pepperoncini, 1 1/2 cups beef broth
  • Add the pepperoncini peppers on top now or during the last 1–2 hours of cooking, depending on your texture preference.
  • Cover and cook on LOW for 8–10 hours or HIGH for 6–8 hours, until the meat is fork-tender and easily pulls apart.
  • Shred the roast directly in the slow cooker using two forks and stir to combine with the gravy.

Nutrition

Serving: 1serving | Calories: 561kcal | Carbohydrates: 8g | Protein: 45g | Fat: 39g | Saturated Fat: 19g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 17g | Trans Fat: 2g | Cholesterol: 187mg | Sodium: 461mg | Potassium: 923mg | Fiber: 1g | Sugar: 4g | Vitamin A: 436IU | Vitamin C: 17mg | Calcium: 65mg | Iron: 5mg