Tender Beef • Colorful Bell Peppers • Savory Garlic Sauce • Easy One-Pan Dinner
This Best-Ever Pepper Steak is a delicious, homemade dinner featuring tender slices of beef, crisp-tender bell peppers, and a rich, savory sauce. Every bite combines juicy steak, sweet peppers, fresh garlic, and a flavorful sauce that tastes just like your favorite takeout—but it’s easy to prepare right in your own kitchen.
The secret to making excellent pepper steak is slicing the beef thinly against the grain, cooking it quickly over high heat, and adding a perfectly balanced sauce made with soy sauce, beef broth, and a touch of brown sugar. Serve it over fluffy white rice for a comforting family meal that everyone will love.
Recipe Information
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Prep Time: 15 minutes
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Cook Time: 20 minutes
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Total Time: 35 minutes
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Servings: 4
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Course: Main Course
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Cuisine: Chinese-American
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Cooking Method: Stovetop
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Difficulty: Easy
Equipment Needed
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Large skillet or wok
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Sharp knife
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Cutting board
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Mixing bowl
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Small bowl for the sauce
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Whisk or fork
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Measuring cups and spoons
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Tongs or a wooden spoon
Ingredients
For the Pepper Steak
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1 pound beef sirloin or flank steak, thinly sliced against the grain
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2 tablespoons vegetable oil, divided
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1 large green bell pepper, sliced
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1 large red bell pepper, sliced
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1 medium yellow onion, sliced
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3 cloves garlic, minced
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1 teaspoon freshly grated ginger, optional
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½ teaspoon black pepper
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¼ teaspoon salt, or to taste
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2 green onions, sliced, for garnish
For the Savory Pepper Steak Sauce
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½ cup beef broth
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¼ cup low-sodium soy sauce
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1 tablespoon oyster sauce
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1 tablespoon brown sugar
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1 tablespoon cornstarch
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1 tablespoon water
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1 teaspoon rice vinegar
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½ teaspoon freshly ground black pepper
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¼ teaspoon crushed red pepper flakes, optional
Ingredient Notes
Beef: Sirloin and flank steak are excellent choices because they cook quickly and absorb the sauce beautifully. Flank steak should always be sliced thinly against the grain to help keep it tender.
Bell peppers: Green peppers add a slightly earthy flavor, while red and yellow peppers contribute sweetness. You can use any combination you prefer.
Soy sauce: Low-sodium soy sauce gives the sauce its classic savory flavor without making the dish excessively salty.
Oyster sauce: This ingredient adds richness and a deeper, restaurant-style flavor. If you don’t use oyster sauce, substitute hoisin sauce for a slightly sweeter result.
Cornstarch: Cornstarch thickens the sauce, helping it coat the beef and vegetables instead of pooling at the bottom of the pan.
Fresh garlic and ginger: These aromatics bring warmth and fragrance to the dish. Fresh ingredients generally give the best flavor.
Instructions: How to Make the Best-Ever Pepper Steak
Step 1: Prepare the Beef
Place the steak on a cutting board and slice it into thin strips against the grain. Aim for slices about ¼ inch thick so they cook quickly and remain tender.
Pat the beef dry with paper towels. Season lightly with black pepper and a small amount of salt.
Tip: If the steak is difficult to slice, place it in the freezer for about 15–20 minutes first. This firms up the meat and makes cutting thin, even strips easier.
Step 2: Mix the Sauce
In a small bowl, whisk together the beef broth, soy sauce, oyster sauce, brown sugar, rice vinegar, and black pepper.
In a separate small bowl, mix the cornstarch with 1 tablespoon of water until smooth. Set both mixtures aside.
Keeping the sauce ready before cooking makes the process easier because the beef and vegetables cook quickly.
Step 3: Sear the Beef
Heat 1 tablespoon of vegetable oil in a large skillet or wok over medium-high to high heat.
Add half of the beef in a single layer. Sear for approximately 1–2 minutes per side, until browned and nearly cooked through. Transfer the beef to a plate.
Repeat with the remaining beef, adding a little more oil if necessary.
Avoid overcrowding the skillet. Cooking the beef in batches allows it to brown properly instead of steaming in its own juices.
Step 4: Cook the Vegetables
Add the remaining oil to the same skillet. Add the sliced onion and bell peppers.
Stir-fry for approximately 3–5 minutes, stirring frequently, until the vegetables soften slightly but still retain some crunch.
Add the minced garlic and grated ginger. Cook for another 30–45 seconds, stirring constantly until fragrant.
Don’t overcook the peppers. Their color, texture, and slight sweetness are an important part of excellent pepper steak.
Step 5: Add the Sauce
Pour the prepared beef broth mixture into the skillet. Stir well, scraping up any browned bits from the bottom of the pan.
Bring the sauce to a gentle simmer. Stir the cornstarch mixture again, then slowly pour it into the skillet while stirring.
Cook for 1–2 minutes, or until the sauce thickens and becomes glossy.
If the sauce becomes too thick, add a splash of beef broth or water. If it seems too thin, allow it to simmer a little longer.
Step 6: Return the Beef to the Pan
Add the seared beef and any accumulated juices back to the skillet.
Toss everything together so the beef and vegetables are coated in the sauce. Simmer briefly until the beef reaches a safe internal temperature and is heated through. For whole beef steaks cut into strips, the USDA recommends 145°F (63°C), followed by a 3-minute rest; avoid prolonged cooking, which can make thin strips tough.
Taste the sauce and adjust the seasoning if needed. Add extra black pepper for more bite or a small splash of soy sauce for a saltier flavor.
Step 7: Garnish and Serve
Remove the skillet from the heat. Sprinkle sliced green onions over the pepper steak.
Serve immediately over steamed rice, fried rice, or noodles. Spoon extra sauce over each serving for the best flavor.
Tips for Perfect Pepper Steak
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Slice against the grain: This shortens the muscle fibers and makes each bite easier to chew.
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Use a hot skillet: A properly heated pan helps the beef brown quickly.
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Cook in batches: Too much beef at once lowers the pan temperature and prevents good browning.
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Keep the vegetables crisp-tender: Slightly crunchy peppers provide a delicious contrast to the tender beef.
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Prepare everything in advance: Slice the vegetables and mix the sauce before turning on the stove.
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Don’t skip the cornstarch slurry: Mixing cornstarch with cold water first helps prevent lumps.
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Taste before adding salt: Soy sauce and oyster sauce already contain sodium.
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Avoid overcooking: Once the beef is cooked safely and coated in the sauce, serve it promptly for the best texture.
Delicious Variations
1. Spicy Pepper Steak
Add extra crushed red pepper flakes, a little chili garlic sauce, or sliced fresh chili peppers. Adjust the heat to suit your preference.
2. Mushroom Pepper Steak
Add 1 cup of sliced mushrooms with the onions and bell peppers. Mushrooms bring an earthy flavor and soak up the savory sauce.
3. Honey Garlic Pepper Steak
Replace the brown sugar with 1 tablespoon of honey and add an extra clove of minced garlic for a sweeter, richer sauce.
4. Low-Carb Pepper Steak
Serve the steak over cauliflower rice or alongside sautéed cabbage instead of regular rice. Check the labels on your sauces if you need to limit carbohydrates or sodium.
5. Chicken Pepper Stir-Fry
Replace the beef with thinly sliced boneless chicken breast or thighs. Cook the chicken thoroughly to an internal temperature of 165°F (74°C).
6. Extra-Saucy Pepper Steak
For more sauce to serve over rice, increase the beef broth to ¾ cup and adjust the cornstarch slurry as needed until the sauce reaches your preferred consistency.