Sprinkle chicken with 1/4 teaspoon salt. Heat 1 teaspoon oil in a large nonstick skillet over medium-high heat. Add the chicken; cook 3 minutes on each side or until done. Remove from pan; keep warm.
Heat 2 teaspoons oil in pan over medium-high heat. Add chopped onion and bell pepper; sauté 5 minutes, stirring occasionally. Add 1/4 teaspoon salt, ginger, curry, coriander, and garlic, and sauté 30 seconds. Combine broth and cornstarch, and add to pan. Bring to a boil, and cook 1 minute, stirring constantly. Remove from heat. Stir in mango.
Spoon rice onto each of 4 plates; top with chicken. Spoon sauce over chicken; sprinkle with green onions.