*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
**Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
(-)Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.
Heat the oil in a large skillet over medium heat; cook and stir the onion and garlic in the olive oil until fragrant, about 5 minutes. Stir the oyster sauce into the mixture; season with salt and pepper. Add the chicken and mix; cover and cook for 10 minutes. Add the tomato, carrot, and celery; cover again and cook another 5 minutes. Cook the chicken pieces until no longer pink at the bone and the juices run clear, an instant-read thermometer inserted near the bone should read 165 degrees F (74 degrees C). Fold the snow peas into the mixture.
Whisk the cornstarch and water together in a small bowl until no lumps remain; stir into the liquid in the skillet. Allow the mixture to simmer until the sauce has thickened, about 5 minutes. Serve hot.