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A dinner plate with fried rice, veggies and Mongolian beef.
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4.75 from 28 votes

Slow Cooker Mongolian Beef

Tender, flavorful and delicious, this super easy Slow Cooker Mongolian Beef is the perfect weeknight set-it-and-forget-it meal!
Prep Time30 minutes
Cook Time7 hours
Total Time7 hours 30 minutes
Course: Main Course
Cuisine: American
Keyword: beef, crockpot
Servings: 4 Servings
Calories: 357kcal

Ingredients
 

  • 1 1/2-2 pound flank steak
  • 1/4 cup cornstarch
  • 2 tablespoons olive oil
  • 2-3 garlic cloves minced
  • 1/2 cup reduced-sodium soy sauce
  • 1/4 cup water
  • 2/3 cup brown sugar or brown sugar substitute
  • 1 cup shredded carrots
  • Garnish: green onions

Instructions

  • Cut steak 1/2-inch strips. In a Ziploc bag, add steak and cornstarch. Shake to coat. 
  • Add olive oil, garlic, soy sauce, water, brown sugar substitute or brown sugar, and carrots to slow cooker and stir.
  • Add flank steak and stir until coated. 
  • Cook on high 4-5 hours or on low 6-7 hours or until tender. 
  • Serve over rice, zoodles or noodles!

Video

Notes

Pro Tips and Substitutions

    • Use low sodium soy sauce. I recommend using low-sodium or reduced sodium soy sauce to ensure the recipe doesn’t taste too salty or too high in sodium. Coconut Aminos can also be used.
    • Slice the steak with ease. Freezing the flank steak for 15 minutes will make it much easier to slice against the grain.
    • Make it spicy! If you want to add heat, you can add crushed red pepper flakes, sriracha, hot sauce or chili oil.
    • For a hint of sweetness in the sauce, brown sugar or brown sugar substitute both work in this dish.
    • Swap the beef for chicken. This dish can be substituted with sliced or cubed chicken or pork tenderloin.

Storage & Freezing

After the slow cooker Mongolian beef has cooled completely, store leftovers in an air-tight container in the refrigerator up to 3 to 4 days.
Freeze leftovers in an air-tight, freezer-safe container up to 4 months. Thaw in the freezer overnight before reheating.

Nutrition

Calories: 357kcal | Carbohydrates: 12g | Protein: 40g | Fat: 16g | Saturated Fat: 5g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 8g | Cholesterol: 102mg | Sodium: 1264mg | Potassium: 774mg | Fiber: 1g | Sugar: 2g | Vitamin A: 4413IU | Vitamin C: 1mg | Calcium: 59mg | Iron: 3mg
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