If you are craving a dinner that’s both comforting and packed with bold flavor, then this Mongolian Beef Ramen Stir-Fry Recipe will quickly become your new favorite. This dish takes tender slices of flank steak, crisp green bell peppers, and perfectly cooked ramen noodles, all tossed in a luscious, sweet-savory sauce made with soy, brown sugar, and a hint of garlic and spice. Each bite delivers a satisfying mix of textures and tastes that will have you coming back for seconds and impressing anyone you share it with. Plus, it’s a surprisingly simple recipe to whip up on a busy weeknight, combining familiar ingredients in a way that feels fresh and totally delicious.

Ingredients You’ll Need
The magic of this Mongolian Beef Ramen Stir-Fry Recipe lies in its straightforward ingredients that each play a vital role in creating layers of flavor and texture. From the tender beef coated lightly in cornstarch to help it brown beautifully, to the crunchy green bell pepper adding vibrant color and freshness, every item is indispensable.
- 1½ pound flank steak: Thinly sliced against the grain for maximum tenderness and quick cooking.
- ¼ cup cornstarch: Coats the beef for a silky, crispy crust that locks in juices.
- ¼ cup vegetable oil: For perfect searing without overpowering the flavors of the sauce.
- 1 green bell pepper: Sliced into thin strips to add a sweet crunch and vibrant green color.
- 8 ounce ramen noodles (uncooked): The comforting noodle base that soaks up all the glorious sauce.
- 3 green onions: Chopped and reserved for a fresh, zesty garnish at the end.
- 2 tablespoon sesame oil: Adds a rich, nutty depth to the savory sauce.
- ¾ cup soy sauce (low sodium): The salty backbone that balances the sweetness perfectly.
- â…” cup brown sugar (packed): Brings a deep caramel sweetness that defines the Mongolian flavor profile.
- 1¼ cup chicken broth (low sodium or no sodium added): Gives the sauce body and keeps everything moist and saucy.
- 4 cloves garlic (minced): Infuses the dish with savory warmth and aromatic punch.
- ¼ teaspoon red pepper flakes: Just a pinch for a subtle hint of heat that wakes up the flavors.
How to Make Mongolian Beef Ramen Stir-Fry Recipe
Step 1: Prepare the Beef
Start by slicing your flank steak into thin, bite-sized pieces against the grain. This is key to ensuring your beef stays tender and easy to chew. Pop these slices into a large ziplock bag along with the cornstarch, seal it up, and give it a good shake until every piece is lightly coated. This coating will help the beef develop that irresistible crispy exterior once cooked.
Step 2: Cook the Beef
Heat the vegetable oil in a nonstick skillet over medium-high heat. Once it’s shimmering hot, add the beef in small batches—this keeps the pieces from steaming and helps them brown evenly. Cook for about 2 to 3 minutes per batch, just until they develop a golden crust but aren’t overcooked. Remove the cooked beef and set it aside. Remember to discard the used oil to keep the flavors clean for the next step.
Step 3: Sauté the Bell Pepper
Using the same skillet, toss in the thin strips of green bell pepper. Sauté them for 2 to 3 minutes until they soften slightly but retain their crispness and bright color. Removing them now prevents overcooking when the noodles and sauce come together later.
Step 4: Make the Sauce
Add the sesame oil to the skillet followed by soy sauce, brown sugar, minced garlic, chicken broth, and red pepper flakes. Stir everything together, letting it cook over medium heat for about 10 minutes. Your goal is to thicken the sauce by roughly 25%, intensifying the flavors without losing too much liquid so the noodles stay nice and saucy.
Step 5: Cook the Ramen Noodles
While your sauce reduces, prepare the ramen noodles according to the package instructions. Once cooked, drain them thoroughly to prevent sogginess, then set aside to join the stir-fry.
Step 6: Combine Ingredients
Return the browned beef and sautéed bell pepper to the skillet with your luscious sauce. Toss everything together to coat the beef and peppers evenly. Now, add in your drained ramen noodles and give the whole mix a good toss until heated through and perfectly combined.
Step 7: Garnish and Serve the Mongolian Beef Ramen Stir-Fry Recipe
Finally, sprinkle the chopped green onions on top for a fresh, zippy finish and serve immediately while everything is warm and inviting. This is the moment when all the different components come together to create a mouthwatering meal you won’t soon forget.
How to Serve Mongolian Beef Ramen Stir-Fry Recipe

Garnishes
Adding a handful of fresh chopped green onions brings a burst of color and a mild onion crunch that perfectly complements the rich sauce. You can also sprinkle some toasted sesame seeds or add a few thin slices of fresh chili if you want an extra kick.
Side Dishes
This stir-fry is quite a complete meal on its own, but if you want to round it out, think steamed vegetables like broccoli or snap peas for added freshness and nutrition. A crisp Asian-style cucumber salad or even simple pickled vegetables would offer a lovely contrast.
Creative Ways to Present
For a fun twist, serve the Mongolian Beef Ramen Stir-Fry Recipe in shallow bowls topped with microgreens or fresh cilantro for a gourmet touch. You can also serve it family-style in a large platter at the center of the table to encourage sharing and conversation.
Make Ahead and Storage
Storing Leftovers
Place any leftover stir-fry in an airtight container in the refrigerator. It will keep well for up to 3 days. The noodles may absorb more sauce over time, so a quick reheat with a splash of broth or water helps refresh the dish.
Freezing
You can freeze the components separately for best results—store cooked beef and bell peppers in one container and the noodles in another. Freeze for up to 1 month. Thaw overnight in the fridge before reheating to maintain the best texture.
Reheating
Warm your leftovers in a skillet over medium heat, adding a splash of chicken broth or water to loosen up the sauce and prevent the noodles from drying out. Stir frequently until heated through and enjoy the flavors as fresh as the first time.
FAQs
Can I use a different cut of beef in this recipe?
Yes! While flank steak is ideal for its tenderness and flavor, you can substitute with skirt steak or sirloin. Just be sure to slice thinly against the grain to maintain tenderness.
Is it better to use fresh or dried ramen noodles?
This recipe is designed for uncooked dried ramen noodles, which hold up well to tossing in the sauce. Fresh noodles can work but may cook quicker and become mushy, so keep an eye on cooking time.
How can I make this recipe vegetarian?
Swap the beef for firm tofu or seitan and use vegetable broth instead of chicken broth. You can keep the same sauce ingredients to maintain the sweet-savory flavor profile.
Can I adjust the spice level?
Absolutely! The red pepper flakes add a gentle heat, but you can increase or reduce them to taste. For more heat, add fresh chopped chili or a drizzle of chili oil at the end.
Is it necessary to discard the vegetable oil after cooking the beef?
Discarding the oil used to cook the beef helps prevent the sauce from becoming greasy and keeps the flavor balanced. It also allows the bell peppers and sauce to cook cleanly without excess oil lingering.
Final Thoughts
This Mongolian Beef Ramen Stir-Fry Recipe is the kind of dish that feels like a warm hug on a plate—simple enough to make any night of the week but special enough to share with loved ones. The perfect balance of tender beef, sweet and savory sauce, and comforting noodles makes it a winner every time. I can’t wait for you to try it and add this recipe to your signature meal rotation!
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Mongolian Beef Ramen Stir-Fry Recipe
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: 4 servings
- Category: Main Dish
- Method: Frying
- Cuisine: Asian
Description
This Mongolian Beef Ramen Stir-Fry is a flavorful and comforting dish that combines tender cornstarch-coated flank steak, sautéed green bell peppers, and perfectly cooked ramen noodles all tossed in a rich, slightly sweet soy-based sauce. Ready in just under an hour, it’s an easy weeknight meal that marries savory, sweet, and spicy elements for a satisfying Asian-inspired stir-fry.
Ingredients
Beef and Coating
- 1½ pound flank steak, sliced thinly against the grain
- ¼ cup cornstarch
- ¼ cup vegetable oil
Vegetables
- 1 green bell pepper, sliced into thin strips
- 3 green onions, chopped (for garnish)
Noodles
- 8 ounce ramen noodles (uncooked)
Sauce
- 2 tablespoon sesame oil
- ¾ cup low sodium soy sauce
- â…” cup packed brown sugar
- 1¼ cup low sodium or no sodium added chicken broth
- 4 cloves garlic, minced
- ¼ teaspoon red pepper flakes
Instructions
- Prepare the Beef: Slice the flank steak into small thin pieces against the grain to ensure tenderness. Place the beef and cornstarch in a large ziplock bag, seal it tightly, and shake well until every piece is fully coated with cornstarch for a crispy exterior when cooked.
- Cook the Beef: Heat the vegetable oil in a nonstick skillet over medium-high heat until hot. Add the beef in 2-3 batches to avoid crowding the pan, which prevents sticking and allows for even browning. Cook each batch for about 2-3 minutes until the beef is browned. Remove the cooked beef to a plate and discard the used oil from the skillet.
- Sauté the Bell Pepper: Using the same skillet, add the sliced green bell pepper and sauté for 2-3 minutes until it softens slightly but still retains some crunch. Remove from the skillet and set aside.
- Make the Sauce: In the same skillet, add sesame oil, low sodium soy sauce, brown sugar, minced garlic, chicken broth, and red pepper flakes. Stir to combine all ingredients and cook over medium heat until the sauce thickens and reduces by approximately 25%, which takes about 10 minutes. Be careful not to reduce the sauce too much to maintain enough liquid for coating the noodles.
- Cook the Ramen Noodles: While the sauce reduces, cook the ramen noodles following the package instructions until al dente. Drain thoroughly to remove excess water.
- Combine Ingredients: Return the browned beef and sautéed bell pepper to the skillet with the thickened sauce. Toss well to coat the beef and peppers evenly. Then add the drained ramen noodles and stir everything together until the noodles are fully coated and the mixture is heated through.
- Garnish and Serve: Top the finished stir-fry with chopped green onions for a fresh, mild onion flavor. Serve immediately to enjoy the dish at its best hot and flavorful.
Notes
- For extra heat, increase red pepper flakes according to taste.
- Use low sodium soy sauce and chicken broth to keep salt levels moderate.
- The cornstarch coating helps create a crispy crust on the beef when fried without breading.
- Flank steak should be sliced thinly against the grain for tenderness.
- If preferred, substitute ramen noodles with other thin wheat noodles or rice noodles.
- Make sure to not overcook the bell pepper; maintain some crunch for texture balance.
- To save time, prepare the sauce first and keep warm while cooking beef and vegetables.

