1 cup finely chopped onion |
3/4 cup chopped fresh flat-leaf parsley |
1/2 cup dry breadcrumbs |
1/2 cup chopped fresh cilantro |
1 1/2 teaspoons ground cumin |
1 1/2 teaspoons ground coriander |
1 1/4 teaspoons salt |
1/2 teaspoon ground allspice |
1 1/4 pounds ground round |
3/4 pound lean ground lamb |
4 garlic cloves, minced |
2 large egg whites, lightly beaten |
cooking spray |
8 (2-ounce) onion sandwich buns |
8 teaspoons prepared mustard |
16 dill pickle slices |
8 curly leaf lettuce leaves |
8 (1/4-inch) slices tomato |