Easy Chicken and Vegetable Stir-Fry

2 tablespoons vegetable oil

1 ½ pounds skinless, boneless chicken breasts, cut into bite-sized pieces

2 (8 ounce) cans sliced water chestnuts, drained

2 stalks celery, sliced

2 carrots, sliced

½ pound fresh green beans, cut into pieces

½ pound fresh mushrooms, sliced

½ pound fresh bean sprouts

½ pound fresh broccoli, cut into pieces

½ pound fresh green cabbage, cut into pieces

1 ½ cups stir-fry sauce (such as Kikkoman®)

½ cup minced garlic

7 green onion stalks, cut into pieces

2 tablespoons sesame seeds, or to taste (Optional)

2 tablespoons ground ginger, or to taste (Optional)

½ teaspoon salt, or to taste (Optional)