Falafel Spiced Turkey Burger

Name: Falafel Spiced Turkey Burger
Ingredients: 2 tablespoons olive oil, plus more for cooking patties; 1/2 yellow onion, finely chopped; Kosher saltand freshly ground black pepper; 2 large garlic cloves, minced; 1 tablespoon coriander seeds; 2 teaspoons cumin seeds; 1/2 teaspoon ground cinnamon; 1 large egg; 1/2 cup (30 grams) panko breadcrumbs; 1 pound ground turkey (93 percent lean, or your preference); Pinch crushed red pepper; 1 bunch fresh cilantro, finely chopped; 1/2 cup plain Greek yogurt (any fat level will work); 2 tablespoons tahini; 1 clove garlic, finely grated; Zest and juice of 1/2 lemon; 1/8 cup chopped fresh mint; Hot sauce, optional; 4 brioche buns, potato buns, or pitas; 1/4 red onion, thinly sliced; 4 leaves romaine, torn in half; 1/4 cup torn fresh mint leaves