Heat the cooking oil in a pan.
Sauté the garlic and onion
Add the chicken slices. Cook for 3 minutes.
Put-in the soy sauce, oyster sauce, and water. Stir and then cover the pan. Simmer until the water nearly evaporates.
Increase the heat to high and then add the string beans. Cook while stirring for 3 to 5 minutes.
Add salt and pepper to taste.
Transfer to a serving plate. Top with French fried onion.
Serve. Share and enjoy!