For the chicken:
2 tablespoons lemon juice
1 tablespoon chopped fresh oregano
1/2 teaspoon ground coriander
3 garlic cloves, roughly chopped (about 1 1/2 tablespoons)
1/4 cup light olive oil
Kosher salt and freshly ground black pepper
2 pounds boneless, skinless chicken thighs, trimmed of excess fat (6 to 8 thighs)
1 tablespoon vegetable or canola oil
 
For the rice:
2 tablespoons unsalted butter
1/2 teaspoon turmeric
1/4 teaspoon ground cumin
1 1/2 cups long-grain or Basmati rice
2 1/2 cups chicken broth
Kosher salt and freshly ground black pepper

For the sauce:
1/2 cup mayonnaise
1/2 cup Greek yogurt
1 tablespoon sugar
2 tablespoons white or cider vinegar
1 teaspoon lemon juice
1/4 cup chopped fresh parsley
Kosher salt and freshly ground black pepper

To serve:
1 head iceberg lettuce, shredded
1 large tomato, cut into wedges
Fluffy pocketless pita bread, brushed in butter, lightly toasted, and cut into 1 × 3-inch strips
Harissa-style hot sauce