Slow cooker appetizers are a staple of game day spreads, and Mississippi Meatballs deserve a permanent spot on that list. These tender meatballs simmer for hours in a rich, tangy sauce made from au jus mix, ranch seasoning, butter, and pepperoncini peppers, soaking up bold flavor as they cook. The result is a crowd-pleasing bite that works equally well as a party appetizer or a weeknight dinner over mashed potatoes. With just seven ingredients and a slow cooker doing the heavy lifting, this recipe is as simple as it is satisfying.

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A platter of meatballs cooked with pepperoncini and gravy served over mashed potatoes.

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Mississippi Meatballs are a slow-cooker dish built on the same flavor profile as Mississippi Pot Roast, the Southern-style braised beef that brought pepperoncini peppers into mainstream home cooking. The recipe swaps the chuck roast for frozen meatballs and simplifies the process into a hands-off dish that is ready in a few hours with almost no active effort.

The meatballs cook directly submerged in the sauce, so they absorb the tangy, savory liquid throughout the cooking time rather than sitting above it. By the time they are done, the sauce has reduced slightly, and the meatballs are fully saturated with flavor.

This recipe serves equally well as a party appetizer straight from the slow cooker or as a main course paired with a starch. The WARM setting on the slow cooker makes it easy to keep everything at the right temperature throughout a gathering without any extra work.

Why this recipe works

Slow-cooker braising creates a self-basting environment that keeps the protein moist throughout the cooking time. The meatballs absorb the cooking liquid as they sit in it, which softens them and infuses every bite with the tangy, herby flavors of the sauce. There is no risk of the meatballs drying out, as they might in an oven or on the stovetop.

The combination of au jus mix and ranch dressing mix builds a layered sauce without any from-scratch cooking. Au jus contributes a deep, beefy backbone, while ranch adds herby, garlicky complexity that keeps the sauce interesting from the first bite to the last.

Mississippi Meatball ingredients

Frozen meatballs – Serve as the base of the dish, absorbing the tangy, savory sauce throughout the slow cooking process.
Au jus gravy mix – Builds a deep, beefy foundation for the braising liquid, giving the sauce its savory depth.
Ranch dressing mix – Adds herby complexity with notes of garlic, onion, and dried herbs that round out the flavor.
Water – Dissolves the dry seasoning mixes and creates the proper consistency for the braising liquid.
Pepperoncini juice – Contributes tangy acidity that balances the richness of the butter and beef.
Unsalted butter – Melts into the cooking liquid to create a silkier, richer sauce that coats every meatball.
Pepperoncini peppers – Add mild heat, a pop of color, and bursts of tangy flavor throughout the dish.

You can use your own homemade meatballs or buy a bag from the store. Choose meatballs that weigh about an ounce each. The Johnsonville Homestyle ones are great in this recipe.

Try replacing the pepperoncini liquid with beef broth for a heartier beef flavor.

Frozen meatballs, pepperoncini, gravy mix, ranch dressing mix, butter, and pepperoncini.

How to make Mississippi Meatballs

To prepare Mississippi Meatballs crockpot style:

Put the frozen meatballs into a slow cooker with at least a 6-quart capacity.
In a medium bowl, whisk together the au jus, ranch dressing, water, and pepperoncini juice. Pour the mixture into the slow cooker.
Stir the meatballs to coat them evenly in the cooking liquid.
Slice the unsalted butter and scatter it over the top of the meatballs.

Making meatballs with pepperoncini peppers and gravy in a slow cooker.

Add the pepperoncini to the other ingredients and cover the slow cooker.
Slow cook on LOW for three to four hours. Stir every 30 minutes for even cooking and to prevent the meatballs from sticking.
Serve the meatballs hot with some of the cooking liquid drizzled over them.

Slow cooker pepperoncini meatballs with gravy served over mashed potatoes.

What to serve with Mississippi Meatballs

Plopping a few Mississippi Meatballs over a bed of mashed potatoes, rice, or egg noodles makes a great meal, but if you are preparing a snack table for tailgating, these small bites make things way less messy:

Bacon-Topped Deviled Eggs – This recipe transforms an old-school snack into something new and exciting. These deviled eggs start with a tangy filling, and they’re topped with candied bacon bits.

Crispy Fried Jalapenos – Can’t get enough spice in your life? Then you’ll want to make these jalapenos stuffed with cheese and coated with crunchy breadcrumbs.

Storage and reheating instructions

Freezer Storage: Freeze the cooked meatballs on a baking sheet, then transfer them to a freezer-safe, airtight container for up to 1 month. Note that the sauce may change in texture after freezing and thawing. Thaw cooked meatballs in the refrigerator overnight before reheating.
Refrigerator Storage: Store meatballs and sauce in separate airtight containers for up to 3-4 days. Keeping them separate helps preserve the texture of the meatballs during storage.
Reheating Method: For the stovetop, combine the meatballs and sauce in a covered pan over low heat. Shake the pan occasionally until warmed through. If the meatballs begin to dry out, add a small splash of beef stock or water to loosen the sauce. For a quick reheat, microwave in 20 to 30-second increments and stir between each interval.

Homemade meatballs with pepperoncini sauce served over mashed potatoes.

Love meatballs? Try these recipes!

Check out more of my easy slow cooker recipes for appetizers or dinner.

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