Za'atar is a super yummy, versatile seasoning you can use so many ways, so definitely take a look for it if you can! If you can't find any or don't have any on hand, you can replace the 2 tsp of za'atar with 1 tsp each dried oregano, thyme, sesame seeds and salt. You could also use 2 tsp of dried mixed herbs and a pinch of salt and lemon. Note that za'atar does already contain sumac so you don't necessarily have to add that in addition to the za'atar.