TenettiFamily:MandarinOrangeChicken

1 lb. boneless, skinless chicken breasts%BR% 1 Tbls. vegetable oil%BR% 2 cups fresh mushrooms, sliced%BR% 2 tsps flour%BR% 8 oz. chicken broth%BR% 1 6-oz can frozen OJ concentrate, thawed%BR% 1/2 cup green onion bulbs (w/o greens), thinly sliced%BR% 1 11-oz. can madarin orange sections, drained%BR% %BR% Cut chicken into 1-inch chuncks.%BR% Heat oil in skillet; add chicken and brown.%BR% Set chicken aside.%BR% In same skillet, cook mushrooms over medium high, stirring constantly.%BR% Sprinkly flour over mushrooms, stirring quickly to combine.%BR% Gradually stir in broth, OJ and green onions.%BR% Stirring constantly, bring to a boil.%BR% Reduce heat, add chicken.%BR% Simmer for 5 minutes.%BR% Stir in oranges just before serving.%BR% %BR% Serve over rice.%BR%