Chicken Burger w/ 3 Mustard Sauce a la Gloria

This is one of my Grandma Gloria's recipes. It is a pretty healthy and tasty alternative to a beef burger. The 3 Mustard Sauce is delicious and would be a great condiment for many dishes! My mom loved all kinds of mustard so she loved dishes with a mustardy component. She even made a rabbit dish with a fancy mustard sauce.... but this was long before she ever had pet rabbits. She shifted to a firmly "Just say NO to eating rabbits" stand point after we adopted Sunny and Haystack (Sunny & Haystack's instagram).