Place chicken thighs in a large bowl or dish. Add 2-3 tbsp olive oil, and spices. Mix well into the chicken.
Cover bowl with plastic wrap and marinate for 2 hours to overnight. *This recipe will work without marinating time.
Preheat the oven to 425 F when you're ready to cook your chicken.
Pack your marinated chicken tightly into a 9x 5 loaf pan.
Bake for about 45-55 minutes.
Remove the chicken from the oven. There will be excess juices in the pan. THIS IS NORMAL. Tilt the pan over a bowl to pour out the excess juices (save for making a broth later or discard).
Flip the loaf pan onto a cutting board to remove the chicken from the pan.
Cut into thin strips.
Serve chicken shawarma with vegetables, cauliflower rice or regular rice or however you wish.