Creating Greek Chicken Burgers with Tzatziki is simple when you follow these easy steps:

1. Prepare the Tzatziki Sauce: In a bowl, combine Greek yogurt, grated cucumber, minced garlic, olive oil, fresh dill, lemon juice, salt, and pepper. Mix until smooth and refrigerate while you prepare the burgers.

2. Mix the Burger Ingredients: In a large bowl, combine ground chicken, breadcrumbs, chopped red onion, minced garlic, fresh oregano, parsley, salt, black pepper, paprika, and beaten egg. Mix until just combined.

3. Form the Patties: Divide the mixture into four equal portions and shape them into patties. Make a small indentation in the center of each patty to prevent them from puffing during cooking.

4. Preheat the Grill or Pan: Heat a grill or skillet over medium heat. If using a skillet, add a little olive oil to prevent sticking.

5. Cook the Patties: Place the patties on the grill or skillet. Cook for about 6-7 minutes on one side, then flip and cook for another 6-7 minutes or until the internal temperature reaches 165°F (75°C).

6. Toast the Buns: While the burgers are cooking, you can toast the whole wheat burger buns on the grill or in a toaster.

7. Assemble the Burgers: Place a cooked chicken patty on each bun. Top with sliced tomatoes, lettuce, and a generous amount of tzatziki sauce. Add feta cheese if desired.