Japanese-Style Mississippi Pot Roast is a fusion twist on classic slow-cooker pot roast, pairing tender beef with white miso, low-salt soy sauce, ginger and sesame oil while preserving the familiar tang of pepperoncini. The beef cooks until pull-apart tender, then mixes with the onions, carrots, shiitake mushrooms and rich cooking sauce. Serve it over mashed potatoes for a comforting One Recipe Two Cultures dinner.
Japanese
Japanese-Style Mississippi Pot Roast
Growing up, my mom made a pot roast every Sunday, and there was something so comforting about sitting around the table with my family, sharing tender beef over mashed potatoes. That’s the feeling I wanted to bring to this recipe, with a little Japanese inspiration stirred into the familiar flavors of Mississippi pot roast. White miso and soy sauce give the gravy a rich, savory depth, while ginger and sesame oil add warmth and a nutty finish. The pepperoncini bring that tangy little kick I love, with onions, carrots and shiitake mushrooms tucked around the beef as it slowly cooks. Spoon it over a generous helping of mashed potatoes and let that gravy settle into every little valley—you will probably need a nap after this dish!
Mary’s Introduction
THE RECIPE
Japanese-Style Mississippi Pot Roast
Prep 20 minCook 480 minTotal 500 min
Equipment Needed
- Slow cooker Shop this item
Ingredients
Japanese-Style Mississippi Pot Roast
Instructions
Chef Notes
- Pull the beef into large, tender pieces instead of finely shredding it so the meat remains succulent and visually distinct in the sauce.
- Because ranch mix, au jus mix, soy sauce, miso and pepperoncini brine all contribute seasoning, use low-salt soy sauce and unsalted beef stock as written and taste before adding any extra salt.
- How do you know the protein is done? Whole beef is considered safe at 145°F followed by a 3-minute rest, but pot roast needs more time to become pull-apart tender. For the intended texture, continue cooking until the thickest part reaches approximately 195–205°F and a fork slides in and twists with very little resistance. Insert an instant-read thermometer into the center of the thickest section, avoiding large pockets of fat and the bottom of the slow cooker, and check more than one spot. Temperature—not color, appearance or feel alone—is the primary safety check.
Nutrition estimated per serving
855 Calories70.8 g Protein22.2 g Carbs53.3 g Fat24.8 g Sat. Fat3.3 g Fiber7.5 g Sugar2865 mg Sodium
View Full Nutrition Label
Nutrition Per Serving
Calories855
Protein70.8 g
Carbs22.2 g
Fat53.3 g
Sat. Fat24.8 g
Fiber3.3 g
Sugar7.5 g
Sodium2865 mg
Nutrition information is an estimate based on available ingredient data and can vary by brand, preparation and substitutions. It is provided for convenience and is not medical advice.
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LEFTOVER IDEAS
Turn the leftovers into something new.
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How to Make It
Add the Beef
Place the chuck roast or London broil in the slow cooker.
Add the Seasoning Mixes
Sprinkle the ranch dressing mix and au jus mix evenly over the beef.
Arrange the Vegetables
Add the butter, onion, mushrooms, carrots, pepperoncini brine, whole pepperoncini and garlic around the roast.
Mix the Japanese-Inspired Sauce
Combine the soy sauce, beef stock, white miso, sesame oil and ginger paste until smooth.
Pour the Sauce
Pour the mixed sauce over the roast and vegetables.
Slow-Cook Until Tender
Cover and cook on HIGH for 6 to 8 hours, until the beef pulls apart easily with a fork.
Pull and Mix the Beef
Pull the beef into large pieces and gently mix it into the vegetables and sauce.
Serve
Spoon the saucy pot roast and vegetables over mashed potatoes.
Recipe Guidance
Storage
Cool the pot roast promptly and refrigerate the pulled beef, vegetables and cooking sauce together in a shallow airtight container within 2 hours. Store the mashed potatoes separately. Use refrigerated leftovers within 3 to 4 days.
Reheating
Reheat the beef, vegetables and sauce gently in a covered saucepan over medium-low heat, adding a splash of unsalted beef stock if needed, until the center reaches 165°F. Reheat the mashed potatoes separately, then spoon the hot, saucy pot roast over them.
Make Ahead
Prepare the onion, mushrooms, carrots and garlic and mix the sauce up to 1 day ahead; refrigerate them in separate covered containers. The finished pot roast may also be cooked ahead, cooled safely and refrigerated, then reheated gently in its sauce before serving.
Serving Suggestions
Serve the pulled pot roast over warm mashed potatoes with the carrots, onions, shiitake mushrooms, pepperoncini and plenty of cooking sauce visible on top.
