Introduction

When you’re craving something rich, savory, and melt-in-your-mouth delicious — but don’t want to spend hours in the kitchen — this Dump and Go Crockpot Mongolian Beef recipe is your weeknight hero. 🥢🥩✨

It’s everything you love about your favorite takeout: tender strips of beef slow-cooked in a sticky, garlicky, and slightly sweet sauce that clings to every bite. The magic happens in your slow cooker — no searing, no fuss, just dump everything in and let time do the work.

As it cooks, your kitchen fills with the incredible aroma of soy, brown sugar, and ginger blending into the most irresistible Asian-inspired sauce. By dinnertime, you’ll have perfectly tender beef and a glossy, flavorful sauce begging to be spooned over rice or noodles.

If you love cozy, set-it-and-forget-it crockpot recipes, this one’s about to earn a permanent spot in your dinner rotation.

Let’s get started — dinner practically cooks itself tonight! 🍚

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Why You’ll Love This Recipe

• ⏱ True dump-and-go meal — no browning, no hassle.
• 🥩 Fall-apart tender beef that soaks up every drop of that sweet-savory sauce.
• 🍯 Better than takeout — rich, saucy, and full of flavor.
• 🍽 Perfect over rice or noodles for a satisfying dinner.
• 💡 Make-ahead and freezer-friendly — ideal for busy weeks.

If you love slow cooker beef recipes like honey garlic beef or Korean BBQ, this Mongolian version will be your new favorite!

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Ingredients

For the Crockpot Mongolian Beef:

• 2 lbs flank steak, thinly sliced against the grain
• ½ cup low-sodium soy sauce – base of the sauce
• ½ cup brown sugar – adds sweetness and caramel depth
• ¼ cup hoisin sauce – for umami and richness
• 3 cloves garlic, minced – aromatic flavor base
• 1 tbsp fresh ginger, grated – bright and slightly spicy
• 1 cup beef broth – keeps everything tender
• 2 tbsp cornstarch + 2 tbsp water – for thickening
• 1 tbsp sesame oil – for that authentic Asian aroma
• ¼ tsp crushed red pepper flakes (optional) – adds a gentle heat
• 2 green onions, chopped, for garnish
• Sesame seeds, for garnish

💡 Pro Tip: Slice your beef very thin — it helps it become ultra-tender as it slow cooks.

Step-by-Step Instructions

1. Prepare your crockpot.

Lightly spray the inside of your slow cooker with nonstick spray.

2. Add the beef and sauce ingredients.

Place the sliced flank steak in the crockpot. Add soy sauce, brown sugar, hoisin sauce, garlic, ginger, beef broth, sesame oil, and red pepper flakes (if using). Stir gently to coat.

🍯 Pro Tip: Don’t worry if it looks thin at first — it’ll thicken beautifully later.

3. Cook low and slow.

Cover and cook on LOW for 5–6 hours or HIGH for 3–4 hours, until the beef is tender and easily shredded with a fork.

4. Thicken the sauce.

In a small bowl, mix cornstarch with cold water. Stir it into the crockpot during the last 30 minutes of cooking. The sauce will thicken and become glossy.

👩‍🍳 Pro Tip: Keep the lid slightly ajar while thickening to help the sauce reduce perfectly.

5. Serve and garnish.

Serve the Mongolian beef over steamed rice or noodles. Garnish with sliced green onions and sesame seeds for a restaurant-quality finish.

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Tips for Success

1. Slice against the grain for tender, melt-in-your-mouth texture.
2. Don’t skip the cornstarch. It’s key to getting that luscious, glossy sauce.
3. Low and slow = tender beef. Cooking too hot can make it tough.
4. Add veggies if you like! Broccoli, snow peas, or bell peppers work beautifully.
5. Taste and adjust. Want it sweeter? Add a little more brown sugar. Need more tang? Add a splash of rice vinegar.

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Variations & Substitutions

• Spicy Mongolian Beef: Add sriracha or extra red pepper flakes.
• Honey Mongolian Beef: Swap half the brown sugar for honey.
• Low-Carb/Keto: Replace brown sugar with monk fruit or erythritol.
• Gluten-Free: Use tamari or coconut aminos instead of soy sauce.
• Vegetable Add-In: Add broccoli florets during the last 30 minutes for a complete one-pot meal.

🥦 Bonus Tip: Stir in steamed veggies before serving for added nutrition and color.

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What to Serve With It

• Steamed White or Jasmine Rice – the classic pairing.
• Garlic Noodles – for a richer, restaurant-style experience.
• Asian Cucumber Salad – refreshing and crisp.
• Roasted Broccoli or Bok Choy – for balance and texture.

🍽️ Perfect for cozy weeknights, meal prep, or family-style dinners.

Storage & Reheating

• Fridge: Store in an airtight container for up to 4 days.
• Freezer: Freeze for up to 2 months — thaw overnight before reheating.
• Reheat: Warm gently on the stove or in the microwave with a splash of water to loosen the sauce.

💡 Pro Tip: It tastes even better the next day as the flavors deepen!

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Nutrition Facts (per serving, serves 6)

• Calories: 375
• Protein: 35g
• Carbohydrates: 22g
• Fat: 15g
• Sugar: 12g
• Sodium: 640mg

High in protein, gluten-free friendly, and full of bold Asian-inspired flavor.

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Common Mistakes to Avoid

1. Cooking on high too long – beef can dry out; low and slow is best.
2. Using too thick slices – thin slices cook tender and evenly.
3. Adding cornstarch too early – it loses thickening power if overcooked.
4. Over-sweetening – balance is key; taste before adjusting.
5. Skipping the resting time – let it sit a few minutes before serving for a silkier sauce.

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FAQ Section

Q1: Can I use a different cut of beef?
Yes! Chuck roast, sirloin, or stew meat all work — just ensure they’re thinly sliced.

Q2: Can I make this on the stovetop?
Absolutely. Simmer all ingredients in a large skillet for 20–25 minutes until tender and thickened.

Q3: Can I add vegetables?
Yes! Add broccoli, bell peppers, or carrots during the last 30 minutes of cooking.

Q4: How can I make it more authentic?
Use a mix of brown sugar and mirin, and garnish with fresh ginger and sesame oil before serving.

Q5: Can I prep this ahead?
Yes — combine everything in a freezer bag, freeze flat, then thaw overnight and cook as directed.

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Conclusion

Rich, tender, and packed with umami flavor, this Dump and Go Crockpot Mongolian Beef proves that incredible dinners don’t need to be complicated. Just toss everything in your slow cooker, go about your day, and come home to a meal that tastes like takeout — only better.

It’s cozy, satisfying, and guaranteed to earn a permanent spot on your comfort-food favorites list.

If you loved this, try my Homemade Gyro Meat Recipe or Marry Me Chicken Gnocchi Soup next — they’re just as easy, flavorful, and family-approved!