Peel and dice the apple (onion plus the 1/2 lemon are put aside)
Place ground turkey in a large bowl
Add the Worchester sauce, basil, onion, apple slices, salt, and pepper to the ground turkey.Squeeze in the remaining 1/2 lemon onto turkey mixture. Mix together but make sure to not over mix. Just enough where the ingredients are evenly through the meat.
Separate the meat into four sections and mold into patties. (they may seem large but they will be perfect for a normal size burger bun. As they cook they do slightly shrink in size)
Place on grill and cook for 5 minutes on each side or until the core temperature reaches 165 degrees Fahrenheit***At this point if the asparagus and and pepper/onions looked cooked you can remove and let cool until burgers are ready*** Add cheese when there is about two minutes left of cooking to help melt.
optional- you can drizzle olive oil on the burger buns an place on grill for 30 seconds to warm up and lightly toast. They can burn easily so watch and remove once ready.