Beef

Smoked Mongolian Beef & Noodles with Sweet Garlic Ginger Sauce

Author
Smoking Swines
Date
October 30, 2026
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Smoked Mongolian Beef & Noodles with Sweet Garlic Ginger Sauce

Mongolian beef is already one of those dishes that's hard to beat. Tender beef coated in a sticky, sweet, and savory garlic ginger sauce, tossed with noodles that soak up every bit of flavor. But here at Smoking Swines, we believe just about everything tastes better with a little smoke and fire. That's why we're taking this takeout favorite out of the crockpot and putting it where it belongs — on the smoker.

Instead of letting the beef simmer away in a slow cooker, we're starting with a chuck roast and giving it a proper smoke bath. That low-and-slow cooking builds a smoky bark on the outside while keeping the inside juicy and tender. Once the beef has picked up plenty of smoke, we'll slice it thin and finish it in a rich Mongolian-style sauce.

The sauce is where everything comes together. Low-sodium soy sauce, brown sugar, fresh garlic, ginger, sesame oil, and rice vinegar create that signature balance of sweet, salty, and savory. As the sauce reduces and thickens, it coats the smoked beef and transforms it into something you won't find at your neighborhood takeout spot.

To finish things off, we're tossing in tender lo mein noodles, letting them soak up that glossy sauce, and topping everything with fresh green onions and sesame seeds. It's smoky, sticky, loaded with flavor, and perfect for feeding the family or impressing a few friends at your next backyard cookout.

Ingredients

For the Smoked Beef

  • 2 pounds boneless chuck roast
  • 2 tablespoons olive oil
  • 2 tablespoons SPG seasoning (salt, pepper, garlic)
  • 2 tablespoons unsalted butter
  • 1/2 cup low-sodium beef broth

For the Mongolian Sauce

  • 1/2 cup low-sodium soy sauce
  • 3/4 cup packed brown sugar
  • 1 cup low-sodium beef broth
  • 2 tablespoons minced garlic
  • 1 tablespoon freshly grated ginger
  • 2 tablespoons sesame oil
  • 2 tablespoons rice vinegar
  • 1 teaspoon freshly ground black pepper
  • 2 tablespoons cornstarch
  • 2 tablespoons cold water

For the Noodles and Garnish

  • 12 ounces precooked lo mein noodles
  • 4 green onions, sliced
  • 1 tablespoon sesame seeds (optional)
  • 1 teaspoon chili flakes (optional)

Instructions

Step 1: Fire Up the Smoker

  • Preheat your offset smoker or charcoal grill to 250°F using indirect heat.
  • Use oak, pecan, or cherry wood for a balanced smoke flavor that complements the sweet Mongolian sauce.
  • Maintain a clean-burning fire with thin, light smoke.
  • If using a charcoal grill, arrange the coals on one side and place the beef on the opposite side for indirect cooking.

Step 2: Season the Chuck Roast

  • Pat the chuck roast dry with paper towels.
  • Rub the entire roast with olive oil to help the seasoning stick.
  • Season generously on all sides with SPG seasoning.
  • Let the seasoned roast rest for 15–20 minutes while the smoker stabilizes.
  • Keep the chuck roast whole during the smoking process to prevent the thin slices from drying out.

Step 3: Smoke the Beef

  • Place the seasoned chuck roast directly on the smoker grates, away from the fire.
  • Smoke at 250°F for approximately 2–3 hours, or until the internal temperature reaches 155–165°F and the outside has developed a deep mahogany bark.
  • Rotate the roast if needed to encourage even cooking.
  • Avoid spraying the beef excessively. We want the outside to develop a flavorful crust.
  • Remove the roast from the smoker once the bark is set.

Smoking Swines Tip: We're not cooking this chuck roast all the way to pulling temperature on the grates. We're building smoke flavor first, then finishing the beef in the sauce until tender.

Step 4: Build the Mongolian Sauce

  • Place a cast-iron Dutch oven or deep grill-safe pan over medium heat on your grill or stovetop.
  • Add the butter and let it melt.
  • Stir in the minced garlic and grated ginger.
  • Cook for approximately 1 minute until fragrant.
  • Add the soy sauce, brown sugar, beef broth, sesame oil, rice vinegar, and black pepper.
  • Stir until the brown sugar has completely dissolved.
  • Bring the sauce to a gentle simmer.

Step 5: Finish the Beef in the Sauce

  • Transfer the smoked chuck roast into the Dutch oven with the Mongolian sauce.
  • Add the additional 1/2 cup beef broth from the smoked beef ingredients.
  • Cover the Dutch oven with a tight-fitting lid.
  • Return it to the smoker and increase the cooking temperature to 275°F.
  • Continue cooking for approximately 1–2 hours, or until the beef is fork-tender, typically around 195–205°F internal temperature.
  • Check for tenderness rather than relying only on temperature. The beef should offer very little resistance when pierced with a probe.
  • Remove the Dutch oven from the smoker and transfer the beef to a cutting board.
  • Allow the beef to rest for 10–15 minutes.
  • Slice the chuck roast thinly against the grain or break it into bite-sized pieces, depending on how tender it has become.

Step 6: Thicken the Mongolian Sauce

  • Return the Dutch oven containing the sauce to medium heat.
  • In a small bowl, whisk together the cornstarch and cold water until completely smooth.
  • Slowly stir the cornstarch slurry into the simmering sauce.
  • Cook for 3–5 minutes, stirring frequently, until the sauce becomes thick, glossy, and slightly sticky.
  • If the sauce becomes too thick, add a splash of beef broth.
  • Return the sliced smoked beef to the sauce and gently toss until completely coated.

Step 7: Add the Noodles

  • Prepare the precooked lo mein noodles according to the package instructions, if needed.
  • Separate the noodles gently to prevent clumping.
  • Add the noodles directly to the Dutch oven with the smoked beef and sauce.
  • Toss everything together until the noodles are evenly coated.
  • Continue heating for 3–5 minutes until the noodles are hot and have absorbed some of the sauce.
  • If needed, add a splash of warm beef broth to loosen the sauce.

Step 8: Garnish and Serve

  • Remove the Dutch oven from the heat.
  • Sprinkle freshly sliced green onions over the beef and noodles.
  • Add sesame seeds for a little crunch and extra flavor.
  • For a spicy finish, sprinkle with chili flakes.
  • Serve immediately while the sauce is hot, sticky, and glossy.

Smoking Swines Tips for the Best Mongolian Beef

Choose the Right Wood

Oak and pecan are excellent choices for smoking chuck roast because they provide a rich smoke flavor without overpowering the garlic and ginger. Cherry wood is another great option, especially if you want a slightly sweeter smoke profile that complements the brown sugar in the sauce.

Don't Skip the Smoke

The biggest difference between traditional Mongolian beef and this version is the smoky flavor built into the chuck roast. Giving the beef time to develop a good bark before finishing it in the sauce adds depth that you simply can't get from a crockpot.

Keep the Sauce Balanced

Mongolian sauce should be sweet, salty, and savory without being overwhelming. If you prefer a less sweet sauce, reduce the brown sugar to 1/2 cup. For a stronger savory flavor, add another tablespoon of soy sauce. A splash of rice vinegar at the end can also help balance the sweetness.

Want a Little Heat?

Add 1–2 teaspoons of chili garlic sauce or a pinch of crushed red pepper flakes to the Mongolian sauce. The heat works especially well with the sweet brown sugar glaze and smoky beef.

Make It on a Weber Kettle

No offset smoker? No problem. Set up your Weber kettle for indirect cooking using a two-zone fire. Add a chunk of oak or cherry wood to the charcoal, keep the cooking temperature around 250°F, and smoke the chuck roast until the bark develops. Finish the beef in a covered Dutch oven over indirect heat at approximately 275°F.

What to Serve with Smoked Mongolian Beef

These smoked Mongolian beef noodles are already a complete meal, but a few sides can take things even further.

  • Grilled Broccolini: A little char and a squeeze of fresh lemon help balance the rich, sweet sauce.
  • Smoked Garlic Green Beans: Toss fresh green beans with garlic, butter, and a little sesame oil before cooking.
  • Grilled Bok Choy: Lightly charred bok choy brings a fresh, slightly bitter contrast to the Mongolian beef.
  • Spicy Cucumber Salad: Cool, crisp cucumbers with rice vinegar and chili flakes cut through the richness of the noodles.

Storage and Reheating

  • Refrigerator: Store leftovers in an airtight container for up to 3–4 days.
  • Freezer: Freeze the smoked Mongolian beef and sauce separately from the noodles for up to 3 months.
  • Reheating: Warm the beef and noodles in a skillet over medium-low heat with a splash of beef broth to loosen the sauce.
  • Meal Prep: Smoke and finish the beef ahead of time, then prepare fresh noodles when you're ready to serve.

Final Thoughts

Taking Mongolian beef from the crockpot to the smoker changes the entire dish. You still get that tender beef, sticky garlic ginger sauce, and noodles loaded with flavor, but now there's an unmistakable layer of wood-fired goodness in every bite.

Whether you're cooking on an offset smoker, a Weber kettle, or finishing everything in a cast-iron Dutch oven, this is the kind of meal that proves your smoker can do a whole lot more than brisket and ribs.

Fire up the smoker, grab a chuck roast, and give your next noodle night the Smoking Swines treatment.

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