01 - In a large bowl, mix ground turkey, onion, garlic, parsley, Worcestershire sauce, Dijon mustard, smoked paprika, salt, and pepper gently until just combined; avoid overmixing.
02 - Divide mixture into 4 equal portions and shape into patties slightly larger than buns to allow for shrinkage during cooking.
03 - Heat olive oil in a skillet or grill pan over medium heat until shimmering.
04 - Cook patties for 5 to 6 minutes per side until browned and internal temperature reaches 165°F (75°C).
05 - During the final minute of cooking, place a slice of cheddar on each patty, cover the pan, and allow the cheese to melt thoroughly.
06 - Optionally toast hamburger buns until lightly crisp and warmed.
07 - Spread chosen condiments on buns, layer lettuce, turkey patty with cheese, tomato slices, onion rings, and pickles. Cap with top bun.
08 - Serve the assembled burgers hot alongside preferred sides.