Classic Pepper Steak Recipe: Savory Stir-Fry with Bell Peppers

Beef sirloin: Thinly sliced for quick, even cooking.

Green bell pepper: Adds freshness and a slightly bitter note.

Red bell pepper: Brings sweetness and color contrast.

Onion: Sliced for mild, savory flavor.

Soy sauce: Provides salty, umami depth.

Cornstarch: Mixed with water to thicken the sauce and give it a glossy finish.

Vegetable oil: Neutral oil for stir-frying.

Black pepper: Freshly ground for a bit of heat.

Salt: To taste, to enhance all flavors.

Slice the beef against the grain to keep it tender. When stir-frying the bell peppers and onion, cook them until just tender-crisp to retain texture and color—this contrast makes the dish more enjoyable.

• Beef sirloin — substitute with chicken breast for a lighter option; slice thin and stir-fry the same way.

• Beef sirloin — substitute with firm tofu to make a plant-based version that absorbs the sauce well.

• Green bell pepper — use yellow bell pepper for similar texture and a milder sweetness.

• Red bell pepper — orange bell pepper also works and adds vibrant color.

• Onion — shallots provide a milder, slightly sweeter flavor.

• Soy sauce — tamari is a gluten-free alternative with comparable umami.

• Cornstarch — arrowroot powder can be used as a gluten-free thickener.

• Vegetable oil — olive oil can be used for a different flavor profile and healthier fat.

• Black pepper — white pepper offers a subtler, different heat profile.

• Salt — sea salt works as a direct substitute, with slightly different mineral notes.

• Cool the pepper steak completely before storing to avoid condensation and sogginess.

• Use airtight containers or heavy-duty freezer bags to preserve freshness and prevent odors.

• Choose containers that minimize excess air to reduce the risk of freezer burn.

• Label containers with date and contents to track storage time easily.

• Refrigerate for short-term storage; the dish keeps well for 3–4 days.

• Freeze for longer storage; the dish retains quality for 2–3 months when properly sealed.

• Thaw overnight in the refrigerator before reheating for best texture.

• Reheat in a skillet over medium heat with a splash of soy sauce or water to rehydrate the sauce and prevent drying.

• Stir occasionally while reheating to ensure even warming and to restore flavor.

• Avoid microwaving when possible, as it can toughen beef and soften vegetables; if using a microwave, reheat on low and check frequently.

• Stovetop Method:

  1. Heat a skillet over medium heat.
  2. Add a splash of vegetable oil or a little beef broth.
  3. Stir in leftovers and heat for 5–7 minutes until warmed through.

• Oven Method:

  1. Preheat oven to 350°F (175°C).
  2. Place pepper steak in an oven-safe dish and cover with foil.
  3. Heat about 15–20 minutes, until heated through.

• Microwave Method:

  1. Place leftovers in a microwave-safe dish and cover with a vented lid or plastic wrap.
  2. Heat on medium power for 2–3 minutes, stirring halfway through for even heating.

• Steaming Method:

  1. Set a steamer basket over simmering water.
  2. Steam leftovers 5–10 minutes, until thoroughly warmed.

• Sous Vide Method:

  1. Place the pepper steak in a resealable bag using water displacement or vacuum seal.
  2. Set sous vide to 140°F (60°C) and heat for about 30 minutes until warmed through.

• Skillet: A large, flat-bottomed pan for searing beef and quickly stir-frying vegetables.

• Spatula: For stirring and flipping ingredients without breaking them apart.

• Cutting board: A stable surface for slicing beef and vegetables.

• Chef’s knife: A sharp, versatile knife for clean, even slices.

• Measuring spoons and cup: For accurate seasoning and mixing the cornstarch slurry.

• Mixing bowl: To combine the cornstarch and water before adding to the pan.

• Tongs: For handling beef slices without piercing them and losing juices.

• Serving dish: To present the finished pepper steak hot and attractive.

Pre-slice the beef, peppers, and onion ahead of time and store them in the refrigerator.

Cook on high heat to brown the beef quickly and keep vegetables crisp.

Batch-cook and freeze half for an easy future meal.

Use a ready-made stir-fry sauce if you prefer to skip mixing soy sauce and cornstarch.

Cook everything in one skillet to reduce cleanup and speed up the process.