Ingredients: , 6 pita rounds, 1 Olive oil cooking spray, 2 tablespoons extra-virgin olive oil, 1.5 pounds ground sirloin or lamb, 1 Black pepper, 1 teaspoon dried oregano or 2 sprigs fresh finely chopped, 2 pinches ground cinnamon, 1 onion chopped, 4 cloves garlic grated, 1 small eggplant, peeled and chopped into 1/4-inch dice, 1 box frozen spinach 10 ounces, defrosted and wrung dry in towel, 1 can tomato sauce, 0.5 cup pitted chopped kalamata black olives, 1 lemon zested, 0.5 cup chopped flat-leaf parsley, 0.5 pound orzo pasta, 1.5 cups crumbled feta cheese...