Chicken Salad

1 lb chicken breasts
3 tsp olive oil
salt and pepper to taste
3 tbsp sour cream
3 tbsp dijon mustard
1/3 c diced celery
1/2 c diced scallions
1/3 c grapes halved or quartered depending on size

1.  Coat chicken with 1tsp olive oil, salt and pepper.  Grill and allow to cool.  Cut into bite sized pieces.
2.  Whisk together remaining olive oil, sour cream and mustard.  Combine all ingredients and toss well. Season with salt and pepper.
3.  Serve over a salad or as sandwich.