1.   In a 6 to 8 qt pan, bring about 4 qts water to a boil over high heat; stir in orzo pasta and cook, uncovered, until just tender to bite (10-12 min). Or cook pasta according to pkg directions.
2.   Meanwhile, drain tomatoes, reserving 1 tbsp oil.  Cut tomatoes into thin slivers and place in a large bowl. Add oregano, lemon juice, broth, cheese, and chicken.  Add the reserved 1 tbsp tomato oil and toss to combine.
3.   Drain pasta well and add to chicken mixture; toss to combine. Garnish with fresh basil if desired.  Serve warm or cold. Makes 6 servings.