Place chicken between plastic wrap, and flatten with a mallet. In bowl season flour with cayenne, salt and pepper. In separate bowl combine mustard and milk. Dip chicken in milk. Dip chicken in flour. Add oil to a large skillet and heat. Add chicken and cook until firm and golden brown, about 3 minutes per side. On plate place lettuce and onion. Add chicken. Serve with dressing on side
In small jar combine all ingredients. Shake to combine.
Recipe Courtesy of Food Network Kitchens