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An overhead image of a white plate with mongolian beef garnished with sesame seeds.
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Slow Cooker Mongolian Beef

An irresistible tender beef cooked in a sweet and flavorful sauce with garlic and ginger. This slow cooker beef recipe is a restaurant quality dinner right from your kitchen.
Prep Time15 minutes
Cook Time4 hours
Total Time4 hours 15 minutes
Course: Main Course
Cuisine: Asian /American
Diet: Halal
Servings: 5 Servings
Calories: 367kcal
Author: Amira

Ingredients

  • 2 - 2.5 pounds flank steak
  • ¼ cup cornstarch
  • teaspoon salt
  • teaspoon black pepper
  • 2 teaspoon sesame oil
  • 2 teaspoon garlic minced (about 1-2 cloves)
  • 2 teaspoon fresh ginger root minced
  • ½ cup low-sodium soy sauce
  • ¾ cup water
  • cup light brown sugar packed and leveled
  • 1 red bell pepper sliced
  • 1 bunch of green onions cut into 1-2 inch pieces
  • Sesame seeds and extra green onions optional for garnish

Instructions

  • Prepare the flank steak by cutting thin slices against the grain. The slices should be about ⅛ to ¼ inch thick.
  • In a bowl or Ziplock bag, add the slices of flank steak, cornstarch, salt and pepper.
  • Gently mix the meat in the bowl or bag to cover the flank steak in the cornstarch and seasonings. Let the meat rest for 5 minutes.
  • Place the flank steak on the bottom of the slow cooker.
  • Add the sesame oil, ginger, garlic, soy sauce, brown sugar and water on top of the sliced flank steak.
  • Give it a good mix and then put the cover on your slow cooker.
  • Cook on low for 3 hours.
  • After 3 hours, remove the slow cooker lid and stir in the sliced bell peppers and green onions.
  • Cook for 1 additional hour, the meat should be tender, the sauce dark brown and thick.
  • Before serving, top with diced green onions and sesame seeds if you wish.

Notes

  • When slicing the flank steak, it should be no thicker than a ¼ inch so it will be able to cook in the allotted time as well as keeping it tender.
  • For easier clean up, line your slow cooker with a slow cooker bag.
  • You can add the sliced red peppers and green onions at the beginning of cooking if you wish.

Nutrition

Calories: 367kcal | Carbohydrates: 24g | Protein: 42g | Fat: 11g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Cholesterol: 109mg | Sodium: 1093mg | Potassium: 789mg | Fiber: 1g | Sugar: 16g | Vitamin A: 746IU | Vitamin C: 31mg | Calcium: 64mg | Iron: 3mg
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