Marinated Shrimp and Artichokes

1/4 cup White Balsamic Vinegar
2 Tbsp Finely Chopped Fresh Parsley
2 Tbsp Finely Chopped Green Onion
3 Tbsp Olive Oil
1 (0.75-oz.) Envelope Garlic-and-Herb Dressing Mix
1 lb Peeled and Deveined, Large Cooked Shrimp (21/30 count)
1 (14-oz.) can Artichoke Hearts (drained, and cut in half)
1 (6-oz.) can Large Black Olives (drained)
1 cup Halved Grape Tomatoes
1 (4-oz.) Package Feta Cheese (cut into 1/2-inch cubes)
Small Fresh Basil Leaves
Whisk together balsamic vinegar and next 4 ingredients in a bowl. Stir in shrimp and next 4 ingredients. Cover and chill 8 to 24 hours. Stir in desired amount of basil just before serving. Serve with a slotted spoon. Tested with Good Seasons Garlic & Herb Salad Dressing & Recipe Mix.