Hot Chicken and Chips Retro

INGREDIENTS

• 4 cups chopped roasted skinless, boneless chicken breast (about 4 breasts)
• 1/4 cup chopped green onions
• 1/4 cup chopped red bell pepper
• 2 tablespoons finely chopped fresh flat-leaf parsley
• 1 (8-ounce) can sliced water chestnuts, drained and chopped
• 1/2 cup low-fat mayonnaise
• 1/4 cup reduced-fat sour cream
• 2 tablespoons fresh lemon juice
• 2 teaspoons Dijon mustard
• 1/2 teaspoon salt
• 1/2 teaspoon freshly ground black pepper
• Cooking spray
• 3/4 cup (3 ounces) shredded Swiss cheese
• 3/4 cup crushed baked potato chips (about 2 ounces)