Combine rotisserie chicken with celery, pickles, celery seeds, salt and pepper, pimento cheese, and 2/3 of crumbled bacon in a large bowl.
Refrigerate until ready to serve.
Prior to serving toss in tomatoes and chopped lettuce.
Stir lightly.
Garnish with remaining crumbled bacon.
Preheat oven to 375°F.
Using a rolling pin, compress and slightly stretch each slice of bread.
With a cookie cutter, cut out rounds of bread big enough to line the bottom and sides of mini muffin tin molds.
Butter both sides of bread circles, and press into molds.
Put your toast cups into the oven until golden brown.