- To a medium-large bowl, add turkey, bread crumbs, whisked egg (just whisk a large egg in a small bowl until well combined, then measure out 2 tablespoons to add to turkey), lemon juice, lemon zest, rosemary, thyme, 1 teaspoon salt, and 1/2 teaspoon black pepper. Mix well. I like to just use my hands, for quickest and best overall mixing of ingredients.
- Divide mixture into six equal portions, and then divide each of those portions in half, to equal twelve portions. Form each portion into a 4" patty and place on a wax paper-lined rimmed pan.
- Place goat cheese on centers of six turkey patties, a strong 1/2-tablespoon of goat cheese each. I like to use a small (4-oz. size) goat cheese log and slice off coin-shaped pieces that equal a bit more than 1/2 tablespoon of goat cheese. Place a bare turkey patty on top of each patty with goat cheese, and then pinch edges together to seal patties and enclose cheese. Sprinkle a bit more kosher salt and black pepper over tops of finished burgers. Cover and refrigerate for 30 minutes.
- Preheat grill to medium/medium-high heat, and then oil cleaned grates. If you have a griddle for your grill, that works great. Or heat a large griddle over medium/medium-high heat on the stovetop. Turkey burgers are generally more loose than beef burgers, but the breadcrumbs, eggs, and refrigerator chilling helps to keep these burgers together. If you have any issues keeping these together, stick to using a griddle on the grill or stovetop. Place burgers on hot griddle or oiled grill grates and let cook for 5 minutes without moving. Gently flip burgers over and cook for 5 to 7 minutes more, or until burgers are cooked through to an internal temperature of 165° F.
- If desired, grill hamburger buns cut side down and lightly brushed with olive oil, until lightly toasted. Place a lettuce leaf on bottom half of each bun, followed by a grilled turkey burger. Top with sundried tomato spread and top half of bun. Serve hot.