This great variation on grilled burgers is a bit on the Italian side!
Preheat an outdoor grill for medium-high heat and lightly oil grate.
Combine the beef, capers, eggs, olives, garlic powder, oregano, feta cheese, and bread crumbs in a bowl. Divide and form the mixture into 4 patties.
Cook burgers on preheated grill about 6 minutes, turning once, to an internal temperature of 160 degrees F (70 degrees C), or to desired doneness.
Per Serving: 615 calories; protein 31.1g; carbohydrates 25.5g; fat 42.8g; cholesterol 217.5mg; sodium 904.2mg.