Grilled Greek Turkey Patty Sandwich

I made these for dinner, originally intending to make Cat Cora's version, but didnt have all her ingredients, didnt want the sauce...etc. Here's my version.

Ingredients:

 3/4  cup bread crumbs (I used whole grain baguettes that were leftover, pulsing        them in the mini chopper)
1 pound ground turkey

• 1/2 cup minced shallot
• 1/3 cup finely chopped fresh flat-leaf parsley
• 2 tablespoons smoked paprika
• 1/2 teaspoon chili powder
• 1 tablespoon ground cumin
• 1 1/2 teaspoons ground coriander 
• 1/2 teaspoon ground nutmeg
• 1 teaspoon ground cinnamon 
• 2 teaspoons freshly ground black pepper
• 2 teaspoons kosher salt1 tsp dried oregano
• Extra virgin olive oil
• Flatbread, cut into squares
• thinly sliced seedless cucumbers
• plain greek yogurt
• arugula
• avacado slices

Preheat grill to medium-high heat 

Combine first 12 ingredients in a large mixing bowl, stirring until well blended. Divide mixture into 16 portions; shape each portion into a cylinder. Brush each meatball evenly with olive oil.
Grill meatballs, turning once, 8-12 minutes or until cooked through. Or, you can  sautee in olive oil in nonstick pan, finish cooking in a 350 degree oven.
Take a piece of flat bread and spread with yogurt, cucumber, avacado and arugula. Place a patty on top and fold in half.