Get ready to dive into a world of flavor with Pepper Steak Stir Fry. I remember the first time I attempted this dish, I was hooked instantly. The vibrant colors of the bell peppers mixed with the savory aroma of the steak sizzling in a pan take me right back to my first kitchen adventure with this recipe.

This quick stir fry is not just a feast for the eyes but a delight for the taste buds. Perfect for a busy weekday dinner, it combines fresh ingredients and a dash of spices that make each bite refreshing and fulfilling. Trust me, you’ll want to add this recipe to your regular meal rotation.
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Why You’ll Love This Recipe
- Quick Prep Time: From chopping to serving, this dish is ready in less than 30 minutes, perfect for busy weeknights.
- Packed with Flavor: The combination of soy sauce, garlic, and fresh ginger creates a deliciously tangy and savory taste.
- Colorful and Nutritious: Bell peppers not only add color but are packed with vitamins, making this a health-conscious choice.
- Customizable Heat: Adjust the black pepper to your taste for a mild to spicy kick that suits your palate.
- One-Pan Cleanup: Using just a skillet or wok means minimal dishes and easy cleanup after cooking.
Ingredients You'll Need
- Soy Sauce – ¼ cup, low-sodium option for a rich, savory base without excess salt.
- Water – ⅓ cup, helps thin the sauce and ensure even cooking.
- Rice Wine Vinegar – 2 tablespoons, adds a slight tangy flavor to enhance the dish.
- Corn Starch – 1 tablespoon, thickens the sauce to coat the steak and vegetables beautifully.
- Black Pepper – ⅛ teaspoon, coarsely-ground for a subtle heat and depth.
- Sirloin Steak – 1 lb, thinly sliced for quick cooking and tender bites.
- Olive Oil – 2 tablespoons, extra virgin for sautéing, brings richness and a subtle aroma.
- Red Bell Pepper – ½ large, thinly sliced, adds a sweet crunch and vibrant color.
- Yellow Bell Pepper – ½ large, thinly sliced, complements the red for a sweet, mellow flavor.
- Green Bell Pepper – ½ large, thinly sliced, adds a slightly sharper taste to the mix.
- Green Onions – 2, sliced and divided, offer mild onion flavor and a fresh finish.
- Fresh Ginger – 2 tablespoons, minced, delivers a warm, zesty kick to the stir fry.
- Garlic Cloves – 2, minced, brings boldness and depth to the overall taste.
How to Make Pepper Steak Stir Fry
Step 1: Marinate the Steak
In a small bowl, whisk together the soy sauce, water, rice wine vinegar, corn starch, and black pepper. Pour this mixture over the sliced sirloin in a large ziplock bag. Seal the bag and shake gently until all the meat is coated. Refrigerate for at least 15 minutes.
Step 2: Sauté the Vegetables
Heat 1 tablespoon of olive oil in a large wok or skillet over medium-high heat. Sauté the sliced peppers, the white part of the green onions, ginger, and garlic for about 3 minutes. Once softened, remove them to a plate.
Step 3: Cook the Steak
Add the remaining tablespoon of olive oil to the wok. Add half of the marinated steak, reserving the marinade liquid. Stir fry the steak for 2 to 3 minutes until it browns, then transfer to the plate. Repeat with the remaining steak, then transfer it to the plate as well.
Step 4: Finish the Sauce
Pour the reserved marinade into the wok. Cook and stir until it thickens, approximately 1 minute. Return the previously cooked steak and vegetables to the wok. Stir them together and cook for a couple of minutes until everything is heated through. Top with the green onion tops and give it one more stir.
Step 5: Serve
Serve immediately over rice or quinoa, allowing the sauce to soak into the grains for extra flavor.

Pro Tips from My Kitchen
✓ Perfectly Tender Steak – Slice the sirloin thinly against the grain to ensure it stays tender during quick cooking.
✓ Veggie Consistency – Keep your pepper slices uniform in size for even cooking and a harmonious texture.
✓ Marinate Ahead – If possible, let the steak marinate overnight for even deeper flavor infusion.
✓ Balance the Heat – If you love spice, consider adding a dash of red pepper flakes to the marinade for extra zing.
✓ Rice Companion – Always have pre-cooked rice ready or try quinoa for a nutty counterpart to the stir fry.
What Makes This Recipe Work
- The combination of soy sauce, rice wine vinegar, and black pepper creates a flavorful marinade that penetrates the thinly sliced steak, making it tender and savory with minimal effort.
- Fresh vegetables like bell peppers and green onions not only contribute color but also a crunchy texture that contrasts perfectly with the juicy steak, enhancing the complexity of each bite.
- By starting with high heat and quick cooking, the steak browns beautifully while retaining its juices, and the final step of thickening the marinade results in a glossy consistency that coats the ingredients well.
Frequently Asked Questions About Pepper Steak Stir Fry
Yes, flank steak or even ribeye can be substituted if you prefer. Just ensure to slice them thinly for proper marination and quick cooking.
Keep an eye on the cooking time. Thin slices should only be stir-fried for 2 to 3 minutes on high heat, maintaining tenderness without drying out.
You can marinate the steak and prepare the vegetables up to a day in advance. Simply store them in the fridge and stir fry right before serving for best results.
Ensure your corn starch is well mixed into the marinade. It requires heating to activate thickening. If it's still not thick after heating, simmer it a little longer or add a touch more corn starch dissolved in water.
Pair it with steamed rice or quinoa to soak up the delicious sauce. You could also serve it alongside a fresh green salad for a light and balanced meal.

Pepper Steak Stir Fry Recipe
Ingredients
- ¼ cup Soy Sauce
- ⅓ cup Water
- 2 tablespoons Rice Wine Vinegar
- 1 tablespoon Corn Starch
- ⅛ teaspoon Black Pepper
- 1 lb Sirloin Steak
- 2 tablespoons Olive Oil
- ½ large Red Bell Pepper Thinly sliced.
- ½ large Yellow Bell Pepper Thinly sliced.
- ½ large Green Bell Pepper Thinly sliced.
- 2 Green Onions Sliced and divided.
- 2 tablespoons Fresh Ginger Minced.
- 2 cloves Garlic Cloves Minced.
Instructions
- In a small bowl, whisk together the soy sauce, water, rice wine vinegar, corn starch, and black pepper.
- Pour this mixture over the sliced sirloin in a large ziplock bag.
- Seal the bag and shake gently until all the meat is coated. Refrigerate for at least 15 minutes.
- Heat 1 tablespoon of olive oil in a large wok or skillet over medium-high heat.
- Sauté the sliced peppers, the white part of the green onions, ginger, and garlic for about 3 minutes.
- Once softened, remove them to a plate.
- Add the remaining tablespoon of olive oil to the wok.
- Add half of the marinated steak, reserving the marinade liquid.
- Stir fry the steak for 2 to 3 minutes until it browns, then transfer to the plate.
- Repeat with the remaining steak, then transfer it to the plate as well.
Finish the Sauce
- Pour the reserved marinade into the wok.
- Cook and stir until it thickens, approximately 1 minute.
- Return the previously cooked steak and vegetables to the wok.
- Stir them together and cook for a couple of minutes until everything is heated through.
- Top with the green onion tops and give it one more stir.
- Serve immediately over rice or quinoa, allowing the sauce to soak into the grains for extra flavor.
Notes
- Use equal-sized pepper slices for even cooking and consider marinating the steak overnight for deeper flavor infusion.





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