Adapted from A Spicy Perspective
Add olive oil to a large soup pot and heat it over medium-low heat.
Mince your garlic and add to the pot. Sprinkle in the onion powder. Saute for 3-4 minute.
Season chicken with salt & pepper.
Add chicken stock, chicken, lemon zest, lemon juice, onion powder and red pepper flakes.
Raise the heat to high. Put the lid on your pot and bring to a boil.
Once it comes to a boil, reduce the heat to medium. Simmer 5 minutes.
Stir in the couscous and salt and black pepper, to taste. Simmer for 5 minutes.
Turn the heat off and remove the chicken from the pot.
Shred the chicken with 2 forks.
Place chicken back into the pot and stir in feta cheese.
Serve warm.