01 - In a large bowl, combine ground turkey, onion, garlic, parsley, Worcestershire sauce, mustard, smoked paprika, salt, and black pepper. Mix until just combined—avoid overmixing.
02 - Divide the mixture into 4 equal portions and shape each into a patty about 1/2 inch thick.
03 - Heat olive oil in a large skillet or grill pan over medium heat. Cook patties for 5 to 6 minutes per side until fully cooked and internal temperature reaches 165°F.
04 - In the last minute of cooking, place a slice of cheese on each patty and cover with a lid to melt evenly.
05 - Optionally, lightly toast the burger buns until golden.
06 - Spread mayonnaise or sauce on the bottom bun, layer with lettuce, tomato, turkey patty with melted cheese, red onion, and pickles. Finish with the top bun.
07 - Serve immediately with preferred sides.