Shrimp and Grits Casserole

INGREDIENTS

• 2 cups 2% reduced-fat milk
• 3/4 cup fat-free, less-sodium chicken broth
• 1 cup uncooked quick-cooking grits
• 1/4 teaspoon salt
• 1/2 cup (2 ounces) shredded Parmesan cheese
• 2 tablespoons butter
• 1 (3-ounce) package 1/3-less-fat cream cheese
• 3 tablespoons chopped fresh flat-leaf parsley
• 1 tablespoon chopped fresh chives
• 1 tablespoon fresh lemon juice
• 2 large egg whites
• 1 pound peeled and deveined medium shrimp, coarsely chopped
• Cooking spray
• Hot pepper sauce (optional)