Pesto chicken salad sandwich

Recipe:
Ingredients

* 1/2 cup low-fat mayonnaise
* 1/3 cup plain fat-free yogurt
* 1/3 cup commercial pesto (such as Buitoni)
* 1 1/2 tablespoons fresh lemon juice
* 1/2 teaspoon salt
* 1/2 teaspoon black pepper
* 4 cups cubed skinless, boneless rotisserie chicken breast
* 1 cup diced celery
* 1/3 cup chopped walnuts, toasted
* 1 (1-pound) focaccia bread, cut in half horizontally, toasted, and cut into 20 slices
* 1 (12-ounce) bottle roasted red bell peppers, drained and chopped
* 10 romaine lettuce leaves

Preparation

Combine first 6 ingredients in a large bowl, stirring with a whisk. Stir in chicken, celery, and walnuts.

Spread 1/2 cup of salad onto each of 10 bread slices. Top each serving with about 2 tablespoons bell pepper, 1 lettuce leaf, and one bread slice.