Make the Sauce
In a small bowl, whisk together soy sauce, sesame oil, brown sugar, and ginger. Set aside.

Prepare the Veggies
Slice bell pepper, onion, and broccoli into bite-sized pieces. Chop the green onions and keep them for later.

Slice the Steak
Cut the steak against the grain into thin, even strips.
(Tip: Slightly freezing the steak for 25–30 minutes makes slicing easier.)

Cook the Vegetables
Heat 1 tablespoon of oil in a large wok or skillet over medium-high heat. Add the bell pepper, broccoli, and onion. Stir fry for 4–5 minutes until lightly browned and tender-crisp. Remove from the pan and set aside.

Cook the Steak
In the same wok, add another tablespoon of oil. Add the sliced steak in a single layer and cook for 3–4 minutes, stirring often, until browned and cooked through.

Combine & Sauce It Up
Return the cooked vegetables to the wok with the steak. Add the green onions and pour in the prepared sauce. Stir well to coat everything evenly.
Cook for 2–3 minutes, until the sauce slightly thickens and clings to the meat and veggies.

Serve & Enjoy
Serve hot with steamed rice, quinoa, or noodles. Garnish with sesame seeds or extra green onions if desired.