Layered Southwest Chicken Salad

a friend brought this to cooking group the other day - oh how I loved it!

½ cup lime juice
½ cup sour cream (I use fat free)
1/3 cup fresh cilantro leaves
2 Tbsp. sugar
½ tsp. salt
½ tsp. pepper
½ cup olive oil

1 package (10 oz.) hearts of
romaine salad mix
1 medium tomato, chopped
1 can (15 oz.) black beans,
rinsed and drained
1 small red onion, chopped
2 packages (6 oz. each) ready-
to-use Southwestern chicken
strips
2 cups (8 oz.) shredded
Mexican cheese blend
1 can (11 oz.) Mexicorn,
drained (I use regular)
1 can (6 oz.) sliced ripe olives,
drained
2 cups coarsely crushed tortilla
chips
Additional fresh cilantro leaves
(optional)

-For dressing, combine the first six ingredients in a blender; cover and process until smooth. While processing, gradually add oil in a steady stream. Transfer to a small bowl; cover and refrigerate until serving.

-In a 4-qt. glass salad bowl, layer the remaining ingredients in the order listed. Add crushed tortilla chips just before serving. Serve with dressing. Yield: 8 servings.

(she serves it home for a main dish, and just layer ingredients on plate)
(Chicken can also be substituted for steak strips or pork chops)