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Slow Cooker Mongolian Beef served over rice with green onions in a white bowl.

Slow Cooker Mongolian Beef


  • Author: Mounia
  • Total Time: 4 hours 10 minutes
  • Yield: 4 servings

Description

This Slow Cooker Mongolian Beef is the ultimate set-it-and-forget-it dinner—savory, slightly sweet, and packed with tender slices of beef in a rich sauce. A homemade version of your favorite takeout that’s perfect for busy weeknights!


Ingredients

  • 1 1/2 pounds flank steak, thinly sliced against the grain

  • 1/4 cup cornstarch

  • 1 tablespoon toasted sesame oil

  • 1 teaspoon minced garlic

  • 1 teaspoon minced ginger

  • 1/2 cup low sodium soy sauce

  • 1/3 cup brown sugar

  • 1/2 cup water

  • 1/2 cup green onions, cut into 1/2 inch pieces


Instructions

  1. Place the flank steak in a bowl with the cornstarch and toss to coat evenly.

  2. Add the coated beef to the slow cooker.

  3. Add sesame oil, garlic, ginger, soy sauce, brown sugar, and water to the slow cooker. Stir to combine.

  4. Cover and cook on HIGH for 2-3 hours or LOW for 4-5 hours, until beef is tender.

  5. Stir in the green onions about 5 minutes before serving.

  6. Serve over rice, noodles, or cauliflower rice. Garnish with sesame seeds if desired.

Notes

For extra sauce thickness, add a cornstarch slurry (1 tbsp cornstarch + 1 tbsp water) 15 minutes before the end of cook time.
Want heat? Add red pepper flakes or a dash of sriracha to the sauce.
Great for meal prep! Store leftovers in the fridge for up to 3 days or freeze for up to 2 months.

  • Prep Time: 10 minutes
  • Cook Time: 4 hours
  • Category: Dinner
  • Method: Slow Cooker
  • Cuisine: Asian-Inspired

Nutrition

  • Serving Size: 1 Serving
  • Calories: 410 kcal
  • Sugar: 12 g
  • Sodium: 950 mg
  • Fat: 16 g
  • Saturated Fat: 4 g
  • Unsaturated Fat: 11 g
  • Trans Fat: 0 g
  • Carbohydrates: 24 g
  • Fiber: 1 g
  • Protein: 40 g
  • Cholesterol: 95 mg