If you love bold flavors and crave a satisfying stir-fry that feels like a warm hug from your favorite Chinese restaurant, then you are going to adore this Chinese Pepper Steak with Onions. This dish brings together tender strips of marinated beef with the delightful crunch of fresh bell peppers and the sharp sweetness of onions, all coated in a luscious, savory sauce. It’s an incredibly comforting yet vibrant meal that you can whip up quickly on any weeknight, showcasing how easy it is to turn simple ingredients into something spectacularly delicious.
Ingredients You’ll Need
Every ingredient in this dish plays a vital role in building its signature flavor and texture, keeping the overall preparation straightforward but impressive. Using fresh vegetables and high-quality beef makes all the difference, and the carefully chosen sauces deliver that authentic Chinese flair without fuss.
- Beef sirloin or flank steak (1 lb): Thinly sliced for fast, tender cooking and maximum flavor absorption.
- Soy sauce (2 tablespoons): Adds salty, umami goodness that forms the backbone of the marinade.
- Oyster sauce (1 tablespoon): Brings a rich, slightly sweet depth to boost the overall savory profile.
- Cornstarch (1 tablespoon): Helps tenderize the beef and creates a glossy finish on the sauce.
- Sesame oil (1 teaspoon): Infuses a subtle nuttiness that complements the beef perfectly.
- Vegetable oil (1 tablespoon): For stir-frying everything to the ideal sear.
- Onion, medium (1): Thinly sliced to melt into sweetness and add texture contrast.
- Green and red bell peppers (1 each): Their bright colors and crunch elevate both appearance and taste.
- Garlic cloves (2): Minced for a fragrant punch that ties the dish together.
- Black pepper (1/2 teaspoon): Freshly ground for sharp, peppery heat that accents the beef.
- Beef broth or water (1/2 cup): Helps create a delicate sauce that coats every bite.
- Salt (to taste): Balances the flavors perfectly without overpowering.
- Optional: sliced green onions: For a fresh, mild onion garnish that adds color and crunch.
How to Make Chinese Pepper Steak with Onions
Step 1: Marinate the Beef
Start by combining the thinly sliced beef with soy sauce, oyster sauce, cornstarch, and a touch of sesame oil in a bowl. Toss everything to coat the beef evenly. Letting it marinate for at least 15 to 20 minutes allows the flavors to sink in, tenderizes the meat, and ensures every bite is juicy and flavorful.
Step 2: Prepare the Vegetables
While the beef marinates, slice the onion and bell peppers into thin strips to cook quickly and retain a pleasing crunch. Mince the garlic finely—its aroma will bloom when it hits the hot oil, creating a wonderful base smell for the dish.
Step 3: Cook the Beef
Heat vegetable oil in a large skillet or wok over medium-high heat until shimmering. Add the marinated beef and stir-fry it for 2 to 3 minutes until it starts to brown but isn’t fully cooked yet. Removing it early ensures the beef stays tender after combining with the vegetables.
Step 4: Cook the Vegetables
Using the same skillet (add a splash more oil if needed), toss in the sliced onions, red and green bell peppers, and garlic. Stir-fry these for about 2 to 3 minutes until the vegetables turn slightly tender but still crisp, preserving their vibrant colors and fresh flavors.
Step 5: Combine Beef and Vegetables
Return the beef to the pan, pour in the beef broth or water, and sprinkle freshly ground black pepper over everything. Stir-fry together for another 2 to 3 minutes until the beef is fully cooked and the sauce thickens just enough to coat the ingredients beautifully. Taste and adjust salt if necessary to perfect the seasoning.
How to Serve Chinese Pepper Steak with Onions

Garnishes
To brighten and freshen the dish, sprinkle a handful of sliced green onions on top just before serving. Their mild sharpness and crisp texture offer a lovely contrast to the rich beef and soft vegetables, making every bite exciting and balanced.
Side Dishes
Chinese Pepper Steak with Onions pairs wonderfully with steamed jasmine or white rice, which soaks up the sauce perfectly. For variation, try serving it alongside garlic noodles or even fried rice to make a complete, satisfying meal that’s hard to resist.
Creative Ways to Present
For a fun twist, serve the pepper steak wrapped in lettuce cups for a light, handheld option that’s perfect for sharing. You can also set it atop a bed of buttery mashed potatoes for an unexpected yet delicious fusion comfort food experience.
Make Ahead and Storage
Storing Leftovers
After enjoying your Chinese Pepper Steak with Onions, store any leftovers in an airtight container and refrigerate within two hours of cooking. It will stay fresh for up to 3 days, making it a perfect meal prep option for busy weekdays.
Freezing
This dish freezes well if you want to save extra portions. Place cooled leftovers in a freezer-safe container or resealable bag, removing as much air as possible. It’s best consumed within 2 months for optimum flavor and texture.
Reheating
To reheat, gently warm the leftovers in a skillet over medium heat, adding a splash of water or broth if the sauce has thickened too much. Stir frequently until heated through to keep the beef tender and the vegetables crisp.
FAQs
Can I use a different cut of beef for this recipe?
Absolutely! Flank steak and sirloin are both great choices because they cook quickly and remain tender when sliced thinly. If using tougher cuts, consider marinating longer or slicing thinner for the best results.
Is it possible to make this dish vegetarian?
Yes! Substitute the beef with firm tofu or seitan and use vegetable broth instead of beef broth. The sauce and peppers still deliver that wonderful flavor and satisfying texture.
How spicy is Chinese Pepper Steak with Onions?
This dish has a mild heat from freshly ground black pepper rather than spicy chili. If you like more kick, you can easily add sliced fresh chilies or a drizzle of chili oil to suit your taste.
What’s the purpose of cornstarch in the marinade?
Cornstarch tenderizes the beef and helps lock in moisture. It also thickens the sauce during cooking, giving it a beautifully glossy appearance that clings to every ingredient.
Can I prepare the vegetables ahead of time?
Sure! You can slice the onions and peppers and mince the garlic a few hours before cooking and keep them covered in the fridge. This makes cooking even quicker without losing any flavor or freshness.
Final Thoughts
Chinese Pepper Steak with Onions is truly one of those dishes that feels like a warm, delicious celebration of simple ingredients coming together in perfect harmony. Whether you’re cooking for family, friends, or just yourself, this recipe offers a fantastic balance of flavors, texture, and color that’s sure to become a favorite go-to meal. Give it a try—you’ll be amazed at how quickly you can create a restaurant-worthy feast right in your own kitchen!


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