In a medium bowl, whisk together all the stir fry sauce ingredients until smooth.
Heat olive oil in a large skillet or wok over high heat.
Add bell peppers, mushrooms, broccoli, snap peas, and carrots. Stir-fry for 3–4 minutes until slightly tender.
Reduce heat to medium and pour in the sauce.
Stir continuously for 1–2 minutes until the sauce thickens and coats the vegetables.
This Easy Veggie Stir Fry is ready when vegetables are crisp-tender and glossy.
Garnish with green onions and sesame seeds before serving.