Stir-Fried Flank Steak and Pepper

Stir-Fried Flank Steak and Pepper

Stir-fried flank steak and pepper is a delicious and savory dish that combines tender strips of beef with vibrant peppers, resulting in a flavorful and satisfying meal. This popular stir-fry recipe is easy to make and can be customized to suit individual preferences. In this comprehensive guide, we will explore everything you need to know about preparing and cooking stir-fried flank steak and pepper, along with variations, health benefits, and serving suggestions.

Ingredients and Preparation

Flank Steak

When it comes to stir-fried flank steak and pepper, choosing the right cut of meat is crucial. Flank steak is an excellent choice due to its tenderness and rich beefy flavor. To ensure optimal results, follow these steps for preparing the flank steak:

  1. Choosing the Right Cut of Flank Steak: Look for a flank steak with minimal visible fat and good marbling. This marbling enhances the tenderness and juiciness of the meat when stir-fried.
  2. Preparing the Flank Steak for Stir-Frying: Before slicing the flank steak, it’s essential to cut it against the grain. This ensures that the resulting meat will be tender and easy to chew. To do this, identify the direction of the muscle fibers and slice the meat perpendicular to those fibers.


Peppers add a delightful crunch, vibrant color, and mild heat to the stir-fried flank steak dish. Here’s how to prepare and slice the peppers:

  1. Selecting the Appropriate Peppers: Opt for bell peppers or other sweet peppers for a milder flavor that complements the beef. Choose peppers in different colors for an eye-catching presentation.
  2. Preparing and Slicing the Peppers: Wash the peppers thoroughly, remove the seeds and membranes, and slice them into thin strips. Aim for consistent thickness to ensure even cooking.

Seasoning and Marinade

To infuse the stir-fried flank steak and pepper with robust flavors, you’ll need to incorporate essential seasonings and create a flavorful marinade. The following elements are crucial for achieving the desired taste:

Essential Seasonings for Stir-Fried Flank Steak and Pepper

  1. Soy Sauce: A staple ingredient in Asian cuisine, soy sauce provides a rich umami flavor and acts as a base for the marinade and stir-fry sauce. Opt for low-sodium soy sauce if you’re watching your salt intake.
  2. Garlic and Ginger: These aromatic ingredients add depth and complexity to the dish. Mince or finely chop the garlic and ginger to ensure they distribute evenly.
  3. Other Flavor Enhancers: Enhance the taste of your stir-fried flank steak and pepper by incorporating other ingredients like oyster sauce, rice wine, sesame oil, and a touch of sweetness from honey or brown sugar. These additions add layers of flavor and balance to the dish.

Marinating the Flank Steak

Marinating the flank steak helps tenderize the meat and infuses it with the flavors of the marinade. Follow these steps for a well-marinated steak:

  1. In a bowl, combine the soy sauce, minced garlic, minced ginger, and other desired flavor enhancers.
  2. Place the flank steak in a resealable bag or a shallow dish and pour the marinade over it. Ensure the steak is evenly coated. Seal the bag or cover the dish with plastic wrap.
  3. Refrigerate the marinating steak for at least 30 minutes, allowing the flavors to penetrate the meat. For more intense flavor, marinate it for up to 24 hours.

Cooking Techniques for Stir-Frying

Wok and Stir-Frying Basics

A wok is a traditional cooking vessel used for stir-frying. Its unique shape allows for even heat distribution and quick cooking. Consider the following tips for using a wok:

  1. Choosing the Right Wok: Opt for a carbon steel or cast-iron wok, as these materials provide excellent heat retention and durability. Avoid using non-stick pans, as they may not achieve the desired sear and char.
  2. Heat Control and Stir-Frying Techniques: Stir-frying requires high heat and quick cooking. Heat your wok over high heat until it’s smoking hot before adding the oil and ingredients. Ensure you have all your ingredients prepped and ready to go before starting to stir-fry.

Stir-Frying the Flank Steak and Pepper

  1. Preparing the Wok: Heat your wok over high heat until it’s smoking hot. Add a high smoke-point oil like peanut or vegetable oil and swirl it to coat the bottom and sides of the wok.
  2. Cooking the Flank Steak and Pepper: Add the marinated flank steak to the wok and stir-fry for 2-3 minutes until it’s browned on the outside but still pink in the center. Remove the steak from the wok and set it aside.
  3. In the same wok, add a little more oil if needed, and toss in the sliced peppers. Stir-fry them for 2-3 minutes until they’re crisp-tender and slightly charred.
  4. Return the cooked flank steak to the wok and toss it with the peppers. Pour in any remaining marinade or a stir-fry sauce of your choice. Stir-fry for an additional minute to heat everything through and ensure the flavors meld together.

Serving and Pairing Suggestions

Serving Stir-Fried Flank Steak and Pepper

To serve your stir-fried flank steak and pepper, follow these suggestions:

  • Transfer the stir-fry to a large serving platter or individual plates.
  • Garnish with sliced green onions or toasted sesame seeds for added visual appeal.
  • Serve the dish hot, as stir-fries are best enjoyed when freshly cooked.

Recommended Side Dishes and Accompaniments

To round out the meal, consider serving the stir-fried flank steak and pepper with:

  • Steamed Rice: Fluffy, steamed white rice is a classic accompaniment to stir-fries. Its neutral flavor balances the savory stir-fry.
  • Noodles: Choose thin rice noodles or lo mein noodles for a delicious alternative to rice.
  • Stir-Fried Vegetables: Add a side of stir-fried bok choy, broccoli, or snap peas for extra vegetables and texture.

Health Benefits of Stir-Fried Flank Steak and Pepper

Nutritional Value of Flank Steak

Flank steak offers several nutritional benefits, including:

  • Protein: Flank steak is a rich source of high-quality protein, which is essential for building and repairing tissues.
  • Iron: Red meats like flank steak provide a significant amount of iron, a mineral necessary for carrying oxygen throughout the body.
  • B Vitamins: Flank steak is a good source of B vitamins, including vitamin B12, which supports healthy nerve function and the production of red blood cells.

Benefits of Peppers

Peppers, particularly bell peppers, are packed with essential nutrients:

  • Vitamin C: Peppers are an excellent source of vitamin C, which supports the immune system and helps the body absorb iron.
  • Dietary Fiber: Peppers contain dietary fiber, which aids digestion and promotes feelings of fullness.
  • Antioxidants: Peppers are rich in antioxidants, which help protect the body against cellular damage caused by harmful free radicals.

Variations and Adaptations

Stir-fried flank steak and pepper can be easily customized to suit different preferences. Consider the following variations and adaptations:

Alternative Protein Options

  • Chicken: Substitute chicken breast or thigh meat for the flank steak. Slice it into thin strips and adjust the cooking time accordingly.
  • Shrimp: Add a seafood twist to your stir-fry by using peeled and deveined shrimp. Stir-fry the shrimp until pink and cooked through.
  • Tofu: For a vegetarian or vegan option, use firm tofu. Press and drain the tofu before slicing it into cubes or strips and stir-frying until golden brown.

Adding Vegetables and Other Ingredients

  • Onions: Sauté sliced onions along with the peppers for added flavor and texture.
  • Mushrooms: Slice mushrooms and stir-fry them with the peppers for an earthy taste.
  • Water Chestnuts: Add sliced water chestnuts to introduce a delightful crunch to the dish.

Adjusting the Heat Level

  • Spicy Peppers: For those who enjoy heat, incorporate spicy peppers like jalapeños or Thai chilies into the stir-fry.
  • Red Pepper Flakes: Sprinkle red pepper flakes over the stir-fry for a kick of heat without altering the overall flavor.


Stir-fried flank steak and pepper is a versatile and satisfying dish that brings together the richness of tender beef and the vibrant crunch of peppers. By following the tips and techniques outlined in this guide, you can create a flavorful stir-fry that delights your taste buds. Customize it with your favorite ingredients, adjust the heat level to your liking, and enjoy a delicious homemade meal that’s quick and easy to prepare.


• Sauce:

▢1/4 cup low-sodium soy sauce
▢1 tablespoon cornstarch
▢1/2 cup beef broth
▢1 tablespoon light brown sugar
▢1/4 teaspoon red pepper flakes
▢4 cloves garlic, minced
▢1 tablespoon ginger paste or finely minced fresh ginger

• Stir Fry :

▢2 tablespoons olive oil, divided
▢1 1/2 pounds flank or skirt steak, thinly sliced
▢1/4 teaspoon kosher salt, adjust to taste
▢1/4 teaspoon freshly ground black pepper, adjust to taste
▢2 bell peppers, any color, sliced into 1/2-inch wide strips
▢1 yellow onion, sliced into 1/2-inch wide strips
▢1 teaspoon sesame seeds, optional


1. In a small bowl or glass measuring cup, whisk together the soy sauce and cornstarch. Add the beef broth, brown sugar, red pepper flakes, garlic, and ginger. Whisk again to combine and set aside.
2. Heat 2 teaspoons of oil in a large skillet over medium-high heat. Add half of the beef in a single layer and cook just until browned about 1 minute. Turn the strips of beef over and continue cooking for just a minute more. Transfer the cooked beef and any liquids to a bowl. Add 2 teaspoons of oil to the skillet and repeat with the remaining beef.
3. Add the remaining oil to the skillet along with the peppers and onions. Cook until lightly browned and beginning to soften. Transfer the vegetables to the bowl with the beef.
4. Lower the heat to medium and pour the sauce into the skillet. Stir and scrape up any browned bits in the bottom of the pan. Continue stirring until the sauce thickens, about 1-2 minutes. Return the meat and vegetables to the skillet and toss to coat. Taste and add more salt and pepper as needed. Warm for a minute or two and serve on its own or over rice. Sprinkle with sesame seeds before serving, if desired.


  1. Can I use a different cut of beef for stir-frying? Absolutely! While flank steak is the traditional choice for stir-frying, you can use other cuts like sirloin, skirt steak, or even thinly sliced ribeye. Just make sure to adjust the cooking time accordingly to ensure tenderness.
  2. How long should I marinate the flank steak? For optimal flavor, marinate the flank steak for at least 30 minutes. However, if you have more time, marinating it for up to 24 hours will further enhance the taste and tenderness.
  3. Can I use different types of peppers for this dish? Yes, you can experiment with different types of peppers to add variety to your stir-fry. Try using poblano peppers for a mild, smoky flavor, or serrano peppers for extra heat. Be mindful of the heat level and adjust it according to your preferences.
  4. What are some vegetarian alternatives for the flank steak? If you’re looking for vegetarian alternatives, you can replace the flank steak with tofu, tempeh, or seitan. These protein-rich options can be marinated and stir-fried in a similar manner to create a delicious plant-based stir-fry.
  5. How can I make the dish spicier? To add more heat to your stir-fried flank steak and pepper, incorporate spicy peppers like jalapeños or red pepper flakes. Adjust the quantity according to your desired spice level, keeping in mind the preferences of those who will be enjoying the dish.

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