Quick Beef Stir-Fry with Fresh Vegetables and Teriyaki Sauce

Peel the onion and slice it into thin strips. Wash the bell pepper and cut it into similar slices. If you're using fresh broccoli, cut it into small, bite-sized florets.

If you have frozen broccoli: get a pot of water boiling with a pinch of salt. Once it's boiling, add the frozen broccoli and blanch it for about 5 minutes. Drain well and set aside.

Slice the beef very thinly against the grain. This helps it cook quickly and stay tender.

Heat a large pan or wok over high heat. Add about 2 tablespoons of vegetable oil. Once the oil is shimmering, add a portion of your sliced beef. Make sure not to overcrowd the pan; you want to sear, not steam. Fry the beef until it's golden brown and cooked through, about 2-3 minutes per batch.

Remove the cooked beef from the pan and set it aside. Repeat with the remaining beef, adding a little more vegetable oil if needed, until all the meat is cooked.

In the same pan, add another 1-2 tablespoons of vegetable oil. Add the sliced onion and bell pepper. Stir-fry for about 3-5 minutes until they start to soften.

Add the broccoli to the pan and continue to stir-fry for another 3-4 minutes, until the vegetables are tender-crisp.

Return all the cooked beef to the pan with the vegetables. Pour in the teriyaki sauce and sprinkle with sesame seeds. Toss everything together to coat evenly.

If you prefer a thicker sauce, create a cornstarch slurry: in a small bowl, mix the 1 teaspoon of cornstarch with 2-3 tablespoons of water until smooth. Pour this mixture into the pan while stirring constantly. Cook for another 1-2 minutes until the sauce thickens to your liking.

Serve your delicious Beef Stir-Fry immediately. It's fantastic on its own, or you can serve it over fluffy cooked rice for a complete meal.