In a large mixing bowl, combine the ground turkey, finely chopped onion, minced garlic, and fresh parsley. Add Worcestershire sauce, Dijon mustard, salt, pepper, and smoked paprika if desired. Gently mix these ingredients with your hands until just combined.

Shape the mixture into four equal patties, each about 1 inch thick. Use your thumb to create a small indentation in the center of each patty.

Preheat your grill to medium-high heat, aiming for a temperature of around 375°F (190°C). If using a skillet, heat oil over medium heat.

Carefully place the patties on the grill or skillet, cooking for about 5-7 minutes without moving them. Look for a golden-brown crust to form.

In the last minute of cooking, place a slice of cheese on each patty if desired. Close the grill lid or cover the skillet to help the cheese melt.

If you like a little crunch, toast your burger buns on the grill or in a toaster until golden and slightly crispy.

Assemble your Turkey Burgers by placing a patty on each bun, topping with fresh lettuce, tomato slices, and any chosen condiments.

Serve the assembled burgers hot and juicy immediately, allowing for customization with extra toppings or sides.