Bacon Egg Salad Croissants

6 hard boiled eggs, chopped
1/3 cup diced celery
1/3 cup mayonnaise
1 tsp prepared mustard
1/4 tsp salt
1/8 tsp pepper
1/3 cup crumbled cooked bacon
4 lettuce leaves
4 thin tomato slices
4 croissants, split

In a bowl, combine the eggs, celery, mayonnaise, mustard, salt and pepper.  Fold in bacon.  Place a lettuce leaf, tomato slice, and 1/2 cup egg salad on each croissant.  Yield: 4 servings.