Turkey Panini with Watercress and Citrus Aioli

Ingredients

• 2 tablespoons canola mayonnaise
• 1/4 teaspoon grated lime rind
• 1/4 teaspoon grated lemon rind
• 1 teaspoon fresh lemon juice
• 1/4 teaspoon freshly ground black pepper
• 1 garlic clove, minced
• 8 (1-ounce) slices white bread
• 1/2 pound deli-sliced smoked turkey (such as Boar's Head)
• 2 cups trimmed watercress
• 4 (1/2-ounce) slices provolone cheese
• Cooking spray

Preparation

1. 1. Heat a grill pan over medium-high heat.
2. 2. Combine first 6 ingredients; spread evenly over 4 bread slices. Top evenly with turkey, watercress, cheese, and remaining 4 bread slices.
3. 3. Coat grill pan with cooking spray. Arrange 2 sandwiches in pan. Place a cast-iron or heavy skillet on top of sandwiches; press gently to flatten. Cook 2 minutes on each side (leave cast-iron skillet on sandwiches while they cook). Repeat procedure with remaining 2 sandwiches.