This easy vegetable stir fry features crisp, colorful vegetables and a simple homemade stir fry sauce that thickens beautifully — a fast, flexible dinner that actually works on busy weeknights.
Make the sauce - In a small bowl, whisk together the soy sauce, vegetable broth, honey, cornstarch, garlic, and ginger until smooth. Set aside.
Cook the vegetables - Heat the olive oil in a large skillet or wok over medium-high heat. Once the skillet is hot, add the bell pepper, snap peas, and carrots first and stir fry until softened. After a few minutes stir in the mushrooms, broccoli, and water chestnuts and stir fry for about 3 minutes until the vegetables are crisp-tender.
Add the sauce - Give the stir-fry sauce a quick stir (the cornstarch may settle), then pour it into the skillet. Reduce the heat to medium-low and stir to coat the vegetables evenly. Cook for 3–4 minutes, stirring often, until the sauce thickens and the vegetables are tender to your liking.
Finish and serve - Remove from heat and garnish with green onions and sesame seeds. Serve warm over rice or noodles, if desired.