Chicken-Cashew Stir-Fry

3 tablespoons oyster sauce (such as Kame)

1 1/2 tablespoons cornstarch

1 1/2 tablespoons honey

1 tablespoon low sodium soy sauce

2 teaspoons rice vinegar or 2 teaspoons white wine vinegar

1/2 teaspoon salt

2 tablespoons oil, divided

1 cup green onion , chopped and divided

1 small onion , cut into 8 wedges

1 cup red bell pepper , julienne-cut into 3 x 1/4-inch pieces 1/2 cup carrot , diagonally sliced

1 cup mixed mushrooms, sliced

1 cup snow peas

1 lb chicken thigh , boned and skinned, cut into bite-size pieces

1/4 cup canned pineapple chunks in juice , drained

1/3 cup cashews

1/2-1 teaspoon crushed red pepper flakes

6 cups hot cooked long-grain rice