Combine first 11 ingredients in a large bowl.
Remove cores from tomatoes.
Cut each tomato into 8 wedges, cutting to, but not through, the other end.
Place 1 tomato on each of 4 plates; top with 1 1/4 cups orzo mixture.
Remove cores from tomatoes.
Cut each tomato into 8 wedges, cutting to, but not through, the other end.
Place 1 tomato on each of 4 plates; top with 1 1/4 cups orzo mixture.
