1largecucumberthin strips removed, seeded and diced
1smalljalapeno pepperseeded if desired, finely chopped
½cupchopped fresh mintabout a handful
salt and freshly ground black pepperto taste
Thinly sliced red onion
Heat olive oil in a small skillet over medium-high heat. Add the onion, reduce heat to medium and cook 7 to 8 minutes or until softened. Add the zucchini and garlic and cook 1 to 2 minutes or until zucchini is softened. Stir in oregano and cayenne pepper.
Remove from the heat and let cool 10 minutes. Transfer to a bowl. Add feta cheese, salt, black pepper and chicken.
Form into 6 even burgers.
Preheat a grill to medium-high heat. Place burgers on the grill. Grill 4-5 minutes on each side or until a thermometer inserted in the center registers 165 degrees.
Combine all ingredients in a bowl.
Serve burgers on brioche buns. Toast or grill if desired. Add lettuce, tomatoes, red onion and tzatziki as desired. Devour.
SUBSTITUTIONS: Use ground turkey in place of the chicken.MAKE AHEAD: Burgers can be assembled up to 12 hours in advance and refrigerated. Tzatziki can be made 24 hours in advance and refrigerated.