3 tsp olive oil
¾ cup ea, diced: onion, carrot, celery
2 cloves garlic
¼ cup black olives, pitted, coarsely chopped
½ lb. thin green beans, trimmed
Pinch crushed red pepper
1 tsp dried oregano
1 lb. boneless, skinless chicken breasts, sliced crosswise into 1/8 in-thick strips
1 ½ tsp cornstarch
½ cup chicken broth
1 ½ salt, or to taste
½ tsp pepper, to taste
Chopped fresh, flat-leaf parsley for garnish (optional)

In a 12-inch skillet, heat 2 tablespoons oil over medium-high heat until very hot but not smoking. Add diced vegetables; and cook, stirring frequently until beginning to brown; about 5 minutes. Ad garlic, olives, red pepper, oregano, and green beans. Cook, stirring frequently, until the beans are crisp-tender; 3 to 4 minutes. Transfer vegetable mixture to a bowl.

Raise the heat to high, and add remaining tablespoon oil to the skillet. Heat until very hot but not smoking, and add chicken. Cook, stirring frequently, until chicken is golden brown and cooked through; 2 to 3 minutes.

Reduce heat to medium. Return vegetable mixture to the skillet. Combine cornstarch with 1 tablespoon of broth, and add to skillet. Toss together until thickened. Season with salt and pepper and sprinkle with parsley. Serve over thin spaghetti or rice.