Light and Delicious Tuna Melt by Kristi Rimkus

My mother loves her tuna melts, but the typical tuna melt is loaded with fattening mayonnaise, and tons of calories. I decided to lighten up the fat and calories in Mom's favorite dish by using a light mayonnaise, and adding double the amount of veggies. Now she has a terrific, healthier version of her favorite sandwich.