
Ask any Instant Pot owner for a favorite recipe using their pressure cooker, and time and again you discover many claim this pot roast as a favorite. Often called Mississippi Mud Pot Roast, this Instant Pot Pepperoncini Pot Roast recipe is a staple.
Pepperoncini gives this roast just a touch of heat while the ingredients come together in a flash, making it a meal you will return to many times over.
Pepperoncini is a mild Italian pepper that is typically pickled and readily available.

I haven’t discovered the origin of the name “Mississippi Mud” for this pot roast, but it’s been a staple recipe in many homes and for church dinners. (If you know the answer, please comment below.)
Traditionally made in the crock pot, this Instant Pot recipe takes less time and gives amazing flavor. I love that the meat can be cooked right from frozen, so no worries if you forgot to thaw that massive hunk of meat. If my pot roast is frozen solid, I add 10 extra minutes to the total time.
Traditional Pepperoncini Pot Roast calls for a stick of butter, but I leave it out to save calories, and I’ve seen no difference in the final result, especially when using the Instant Pot. The Instant Pot pressuring cooking method gives me remarkable tenderness.
If you are worried about the heat in this recipe, substitute the pepperoncini juice for more beef broth, but don’t leave the pepperoncini out entirely since they give a wonderful depth of flavor.
If you prefer not to use seasoning packetsย with questionable ingredients, check out this homemadeย Homemade Onion Soup mixย recipeย as an alternative.
Weight Watchers Instant Pot Pepperoncini Pot Roast Points
The serving size for this meal is 3 ounces of meat and one serving of vegetables (approximately 1 cup), potatoes, carrots, onion, and celery with broth/gravy.
Click to view and log the WW points for this recipe.
Be sure to check out my Instant Pot series, especially if you are new to Instant Pot cooking.
Your family will love this tender, slightly spicy pot roast recipe.
Mississippi Mud Pepperoncini Pot Roast Recipe
Ingredients
- 5 pounds chuck roast of beef
- 1/2 cup beef broth
- 1/2 cup pepperoncini juice or substitute more beef broth to make it less spicy.
- 1 packet ranch dressing mix dry
- 1 packet brown gravy mix dry
- 8 pepperoncini peppers
- 4 cups potatoes any type, cut into large chunks
- 2 cups carrots cut into large chunks
- 1 onion thickly sliced
- 2 stalks celery sliced very thick
- 2 cups mushrooms optional
Instructions
Instant Pot
- Pour broth and pepperoncini juice into the Instant Pot.
- Add the beef roast on top.
- Sprinkle with ranch and brown gravy mixes.
- Top with pepperoncini.
- Close and lock the Instant Pot lid.
- Cook on "manual" or "pressure cook" setting for 90 minutes.
- Allow to natural release for 10 minutes, the quick release.
- Remove meat from Instant Pot and cover to keep warm.
- Add potatoes and vegetables to the pot. Cook on "manual" for 3 minutes. Check potatoes for doneness and cook 1 minute more if needed. Serve.
Slow Cooker
- Pour broth and pepperoncini juice into the crock pot.
- Add the potatoes and vegetables.
- Add the beef roast on top.
- Sprinkle with ranch and brown gravy mixes.
- Top with pepperoncini.
- Cover and cook on Low for 8-10 hours, then serve.
WW Program 2025
The WW program updated for 2025. Use the “Add recipe from the web” feature if needed for points. -Sara
Click here for the FREE 3 Day Meal Plan featured in Woman’s World magazine.
Notes
Nutrition
The Weight Watchers Points value of these recipes was calculated by this web site and is provided for informational purposes only. This is not an endorsement, sponsorship or approval of this web site or its recipes by WW International, Inc.
Pepperoncini Pot Roast (or Mississippi Mud Pot Roast) – Step-by-Step with Photos

This is a perfect meal for a cold night when you don’t want to go to the grocery store. You can cook it from frozen.

The pepperoncini peppers add just a touch of spice. Add less or more to your taste.

Did you know you can also place your Instant Pot Lid and Ring in the dishwasher?

Before you know it, your kitchen will smell amazing, and dinner is done.

Remove the roast from the Instant Pot and let it rest on a plate covered in foil while you quickly cook the veggies in the same pot.


This meal tastes like you spent hours in the kitchen. Your family will love it.


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