July 2, 2026 · 10 min

Quick Steak and Bell Pepper Lo Mein with Sriracha Soy Sauce

Dinner10 min1604 cal / serving

This steak and bell pepper lo mein is a fast, flavorful stir-fry that comes together in about 30 minutes. Thinly sliced sirloin is quickly seared, then tossed with tender-crisp bell peppers, red onion and tomato in a savory-sweet sauce with a hint of heat. It’s a satisfying meal that beats takeout any night.

The sauce combines soy sauce, sweet soy glaze, ketchup and Sriracha for an umami-packed coating that clings to every noodle. Serve topped with fresh scallion greens for a pop of color and freshness.


Recipe details

Dinner10 min1604 cal / serving2 servings

Nutrition per serving

Calories1604 kcalProtein55.4 gFat131.2 gCarbs51.7 gSugar20.9 gFiber4.8 gSodium1200 mg

Dietary labels

Gluten-free: noLactose-free: yesDairy-free: yes

Allergen check

Gluten / wheat: containsMilk / dairy: not detectedEgg: not detectedFish: not detectedShellfish: not detectedPeanut: not detectedTree nuts: not detectedSoy: containsSesame: containsMustard: not detectedCelery: not detectedSulphites: not detectedLupin: not detectedMolluscs: not detected

Values are calculated per serving from ingredient amounts and the ingredient nutrition reference per 100g. Allergen and diet labels use available ingredient metadata and name matching; always check product labels for strict diets or allergies. Some ingredient amounts or nutrition values were incomplete, so this is marked as a partial estimate.


Ingredients

Green Bell Pepper1 unit Green Bell PepperView ingredient guide
Sirloin Steak12 ounce Sirloin SteakView ingredient guide
Cornstarch0.5 tablespoon CornstarchView ingredient guide
Red Onion1 unit Red OnionView ingredient guide
Lo Mein Noodles4.5 ounce Lo Mein NoodlesView ingredient guide
Soy Sauce1 tablespoon Soy SauceView ingredient guide
Sweet Soy Glaze4 tablespoon Sweet Soy GlazeView ingredient guide
Ketchup1 unit KetchupView ingredient guide
Tomato1 unit TomatoView ingredient guide
Scallions2 unit ScallionsView ingredient guide
Sriracha1 teaspoon SrirachaView ingredient guide
Garlic Powder1 teaspoon Garlic PowderView ingredient guide
Cooking Oil2 teaspoon (tsp) Cooking OilView ingredient guide
Saltteaspoon (tsp) SaltView ingredient guide
Black Pepperteaspoon (tsp) Black PepperView ingredient guide

Instructions

  1. Bring a medium pot of salted water to a boil. Pat steak dry with paper towels; thinly slice against the grain. In a medium bowl, combine garlic powder, half the cornstarch, half the soy sauce, a pinch of salt and pepper. Add steak; toss until coated. Set aside.
  2. Once water is boiling, add noodles to pot. Cook, stirring occasionally, until al dente, 5-7 minutes. Drain and set aside.
  3. While noodles cook, wash and dry produce. Cut tomato into ½-inch wedges. Core, deseed and dice bell pepper into ½-inch pieces. Halve, peel and cut onion into ½-inch-thick wedges. Trim and thinly slice scallion greens; cut scallion whites into 1-inch batons.
  4. Heat a drizzle of oil in a large nonstick pan over medium-high heat. Add steak and cook, stirring occasionally, until a crust forms, 4-6 minutes. Transfer to a plate. Wipe out pan.
  5. Heat another drizzle of oil in the same pan over medium heat. Add tomato, bell pepper, onion and scallion whites; cook, stirring occasionally, until browned and tender, 4-6 minutes. Meanwhile, in a small bowl, whisk together sweet soy glaze, Sriracha, ketchup, stock concentrate and ⅓ cup water. Add steak, noodles and sauce mixture to pan with veggies. Cook, stirring constantly, until sauce has thickened and steak is cooked through, 1-2 minutes. Taste and season with salt and pepper if desired.
  6. Divide lo mein between plates and top with scallion greens. Serve.

Recipe Tips

Slice the steak against the grain for maximum tenderness.

Cook the noodles just until al dente; they will finish cooking in the sauce.

For extra heat, add more Sriracha to taste.

FAQ

Can I use a different protein?

Yes, you can substitute the steak with chicken, pork or tofu. Adjust cooking time as needed.

What can I use instead of lo mein noodles?

Spaghetti or udon noodles work well as substitutes. Cook according to package directions.

Can I make this dish ahead of time?

This dish is best served fresh, but leftovers can be stored in an airtight container in the fridge for up to 2 days. Reheat in a pan with a splash of water.

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