Salmon Burgers with Yogurt-Cucumber Sauce — Three Many Cooks

Ingredients

• 1½ pounds skinless salmon filet, finely chopped
• 6 tablespoons chopped fresh dill, divided
• 6 scallions, thinly sliced, divided
• 2 teaspoons finely grated lemon zest
• 12 saltine crackers, finely crumbled
• 1 large egg, beaten
• Salt and ground black pepper
• 1 tablespoon olive oil
• 1 cup Greek yogurt
• ½ seedless (English) cucumber, coarsely grated and squeezed dry
• 6 whole-wheat sandwich buns