Step 1

Heat 1 tablespoon of the oil in a wok or large skillet over high heat until hot. Add the onion, garlic, ginger and red-pepper flakes and stir-fry for 10 seconds. Add the shrimp in one layer. Let cook undisturbed for 1 minute, then add the remaining 1 tablespoon of oil and stir-fry for 1 minute.

Step 2

Add the snow peas, bell pepper, water chestnuts and sesame seeds and stir-fry for 2 minutes. Add the salt and sugar, sprinkling it evenly over the vegetables, and stir-fry until the shrimp are cooked through and bright pink, about 2 minutes. Remove from the heat and serve with brown rice.