Easy Chicken Salad

1/4 cup red or sweet onion, finely chopped
1/4 cup celery, finely chopped
2 cups cooked chicken, cubed
1/3 cup mayonnaise
2 tablespoons mayonnaise
1/2 teaspoon yellow mustard
salt and pepper to taste

Combine all ingredients in a bowl. Serve as a filling for a sandwich, in a wrap, or atop a bed of fresh baby greens.

Optional add ins:

cut up grapes
chopped nuts or seeds
chopped fresh herbs
dried cherries
chopped fresh apple
diced red pepper
curry powder