Gyro - to be fried after mixed; 1 pound ground lamb, or beef; 2 teaspoons kosher salt; 1 teaspoon freshly ground black pepper; 1 1/2 teaspoons ground cumin; 1/4 teaspoon ground nutmeg; 1 teaspoon dried oregano; 2 cloves garlic, minced; 1/4 cup minced red onion; 2 teaspoons freshly squeezed lemon juice; Oil, for grilling or frying, as needed. To be served with 4 rounds flatbread, or pita; 4 leaves lettuce; 1 medium tomato, sliced or diced; 1/2 medium onion, thinly sliced; 1/4 cup Tzatziki sauce |