In a small bowl, combine mustard spread ingredients. Refrigerate until ready to serve.
In a bowl, combine ground chicken and seasoning blend. Divide and shape meat into into 4 patties. You will probably find that the mixture is overly sticky, but my trick is to shape with slightly wet hands.
Heat olive oil in a large non-stick skillet over medium heat. Cook patties until browned and fully cooked, about 5 minutes per side. Turn off heat and top each patty with 3 slices of ham, followed by 1 slice of Swiss cheese. Cover skillet to allow cheese to melt.
Serve patties on hamburgers buns spread with mustard spread. Add other optional toppings, if you wish.