Heat oil in a large skillet or wok
over high heat. Add carrots
, sweet potato
, green beans
and onion and stir-fry
for 5 minutes until vegetables are crisp-tender.
In a small bowl, combine cornstarch, orange juice
and soy sauce
until smooth. Stir the soy sauce mixture along with the ginger
and garlic into the vegetables. Continue to cook and stir for 2 minutes or until sauce has thickened.