Sassy Chicken Salad

1 10 oz can diced tomatoes/green chilies (ro-tel) drained
1/2 c. mayo
1 12.5 oz can chicken
1 c. celery
1 c. grapes (I usually add 2 cups worth)
1/2 c. toasted pecans (can use almonds)

I've omitted the celery and nuts -- and it's still really good.