Preheat the grill or skillet to medium heat. Gather the ingredients, grate the white cheddar cheese, and slice the sourdough bread.
Place the frozen Turkey burgers directly on the grill grates or in the skillet if cooking on the stovetop. Cook according to package directions, 5 to 7 minutes per side and turning once the juices appear on the top. Cook until the internal temperature is 165°F. Season with salt and pepper as desired.
When the burgers have almost finished cooking, grill the sourdough slices on the grill or in a skillet until golden brown.
Place two pieces of the warm sourdough on the serving platter. Top with shredded cheddar cheese, a piece of green leaf lettuce and the turkey burgers.
On the other two top pieces of sourdough, spread each piece with 2 tablespoon cranberry sauce and sprinkle with more white cheddar cheese. Top the turkey burgers with the cranberry and white cheddar grilled sourdough bread. Enjoy!