I invented this and it was good:

Buffalo Chicken Salad Sandwich

2 chicken breasts, grilled and chopped
2 celerey stalks, chopped
2 carrot sticks, grated into strips
1 apple, peeled and diced
1/4 C bleu cheese crumbles
1/2 C mayonnaise (to taste)
2 Tb yellow mustard (or substitute Dijon)
1/4 C buffalo chicken sauce (to taste)

Combine all ingredients in large bowl, mixing until wet ingredients are well-blended and evenly coat dry ingredients. Spoon onto toasted bread end enjoy. I recommend the homemade split pea soup as an accompaniment.