- Preheat oven to 325 degrees F. In a very large bowl combine ground lamb, beef, onion, bacon, Italian seasoning, salt, cumin, and pepper. Place mixture, half at a time, in a food processor; process until a fine paste forms. Press mixture firmly into an 8x4-inch loaf pan.
- Bake for 1 to 1 1/4 hours or until done (165 degrees F). Drain off fat. Cool in pans on a wire rack for 10 minutes. Remove from pan. Cool slightly and then chill, loosely covered, overnight for easier slicing. To serve, cut loaf in half crosswise. Thinly slice each half into thin slices. In a large skillet, heat olive oil over medium heat. Heat meat slices, a few at a time, 2 to 3 minutes, turning once. Repeat with remaining slices.
To make sandwiches:
- Spread flatbreads with yogurt. Arrange warmed meatloaf slices, tomato, onions, cucumber and lettuce leaves on each flatbread; fold in half.