This recipe was an amazing lunch and dinner for us. We love lamb but know how expensive it can be. You can substitute it out for steak, chicken, turkey, seafood, or goose. I think that with the flavor profile that it would be amazing with all of these. Just with the seafood, I would poach it in the liquid close to the end of the cooking with the rice. Seafood has a tendency to cook more quickly than other proteins so you would have to watch it. Also some other proteins may take longer to cook. Also you could make this completely vegetarian by using vegetable stock and just adding more dried fruits and some chickpeas and I think it would absolutely be great.