Prepare the vegetables: Wash and chop the broccoli into florets. Slice the mushrooms and bell peppers into thin strips. Set them aside.

Heat the pan: In a large wok or skillet, heat the olive oil (or sesame oil) over medium-high heat.

Stir-fry the garlic and ginger: Add the minced garlic and optional grated ginger to the pan. Sauté for about 1 minute until fragrant, being careful not to burn the garlic.

Cook the vegetables: Add the broccoli, bell peppers, and mushrooms to the pan. Stir-fry for about 5-7 minutes, until the vegetables are tender-crisp but still vibrant.

Season: Add the soy sauce (or tamari) and sesame oil, stirring well to coat the vegetables in the sauce. Season with salt and pepper to taste.

Garnish: Remove from heat and sprinkle with sesame seeds and chopped green onions for extra crunch and flavor.

Serve: Enjoy your stir-fry immediately, either as a standalone meal or as a side dish to your favorite Asian-inspired meal!