Slow Cooker Sizzling Mongolian Beef

Introduction

Authentic takeout flavor meets ease with Slow Cooker Sizzling Mongolian Beef—a dish that brings restaurant-level satisfaction straight to your home kitchen. With tender strips of beef, a sweet-salty glaze, and aromatic spices, this set-it-and-forget-it recipe delivers bold flavor and melt-in-your-mouth texture. Perfect for busy weeknights, family gatherings, or meal prepping, it’s guaranteed to satisfy and impress.

Why This Sizzling Mongolian Beef Stands Out

The secret to outstanding Mongolian beef is achieving a perfect balance: tender protein, shimmering sauce, and a pop of fresh vegetables. Slow cooking allows the flavors to develop deeply, resulting in a rich, savory sauce that clings to every bite. Sizzling Mongolian Beef brings warmth and excitement to the table, whether served over steamed rice or fresh veggies.

Smart Preparation: Slicing and Chopping for Success

For sizzling success, thinly slice the flank steak against the grain, ensuring each bite is buttery-tender after hours of slow cooking. Chopping fresh aromatics and veggies evenly will guarantee a consistent texture and flavor throughout the dish. A reliable Mueller Pro-Series 10-in-1, 8 Blade Vegetable Chopper helps you tackle garlic, ginger, and green onions quickly and uniformly, setting you up for stress-free prep.

Cooking the Mongolian Beef to Perfection

When making Mongolian beef in the slow cooker, getting the sauce blend just right is essential. After browning the steak lightly in a skillet for that iconic caramelized edge, everything is combined in the slow cooker with savory soy sauce, sweet brown sugar, fresh ginger, and garlic. For those who enjoy a little extra sizzle, a preheated SENSARTE Nonstick Frying Pan Skillet, 9.5 Inch can make quick work of searing the beef, maximizing both flavor and texture.

As the beef cooks low and slow, it soaks up all the delicious sauce, becoming irresistibly tender. If you love extra crispness, a few minutes in the COSORI Air Fryer 9-in-1, Compact & Large 6-Qt, Grey at the end can add the perfect finish.

Serving and Storing Mongolian Beef

Once finished, garnish your Mongolian beef with a generous sprinkle of sliced green onions and sesame seeds. For meal prep or leftovers, transfer portions easily into airtight Rubbermaid Brilliance Food Storage Containers, Set of 5 (3.2 Cup), keeping everything fresh and spill-free for lunch the next day.

This dish pairs beautifully with fluffy white rice, cauliflower rice, or mixed greens, and is even better the next day as the flavors meld even further.

Nutritional Information & Serving Size

This slow cooker Mongolian Beef recipe serves 4–6, depending on your portion size. Each serving is high in protein and provides a satisfying balance of sweet, salty, and umami flavors. Paired with veggies or rice, it makes for a well-rounded meal that satisfies on every level.

Instructions

1. Toss the sliced flank steak with cornstarch in a large bowl, ensuring all pieces are thoroughly coated.
2. Heat vegetable oil in your SENSARTE Nonstick Frying Pan Skillet, 9.5 Inch over medium-high. Sear the beef strips in batches until just browned (they do not need to be cooked through), adding more oil if necessary. Transfer seared steak to your slow cooker.
3. In a bowl, whisk together soy sauce, brown sugar, water, ginger, garlic, and (if using) red pepper flakes. Pour over the steak in the slow cooker.
4. Add sliced bell peppers or carrots, if using, and stir to evenly distribute.
5. Set the slow cooker to LOW and cook for 4–5 hours, or until the beef is melt-in-your-mouth tender and the sauce is glossy and thickened.
6. About 30 minutes before serving, stir in green onions and black pepper. Taste and adjust seasoning if necessary.
7. Serve hot, garnished with sesame seeds and extra green onions. Store leftovers in Rubbermaid Brilliance Food Storage Containers, Set of 5 (3.2 Cup) for easy, on-the-go lunches.
8. Optional: For a crispy finish, transfer beef to the COSORI Air Fryer 9-in-1, Compact & Large 6-Qt, Grey for 3–4 minutes at 400°F just before serving.

Cook and Prep Times

Prep Time: 15 minutes

Cook Time: 4–5 hours (low setting)

Total Time: 4 hours, 15 minutes to 5 hours, 15 minutes

Sizzling Mongolian Beef Recap

Slow Cooker Sizzling Mongolian Beef delivers outstanding flavor with minimal effort. Using easy prep, clever tools like the Mueller Pro-Series 10-in-1, 8 Blade Vegetable Chopper, and smart storage containers, you can enjoy a meal that rivals your favorite takeout—right at home. The combination of tender beef, savory-sweet sauce, and fresh garnishes is a guaranteed crowd-pleaser for any occasion.