1Heat oven to 350°F. Spray 8-inch square pan with cooking spray. In large bowl, stir all bread ingredients. Spread in pan. Bake 15 to 17 minutes or until toothpick inserted in center comes out clean (top will not brown). Cool.
2Meanwhile, in medium bowl, stir all egg salad ingredients except lettuce.
3Cut bread into 4 squares; top each with 1/2 cup egg salad and 1/4 cup lettuce. Season with additional salt and pepper, if desired.