In a large pot, add onion, bay leaves, cardamom, mastic gum, and salt & Pepper. Add water, garlic powder, and onion powder, and bring to a boil over medium heat. Add raw chicken and cook until tender.
Then shred the chicken and return it to the pot. Stir in carrots, peas, and corn, and simmer for 10 minutes or until tender.
Add small pasta shells, mix well, and cook until al dente (8 minutes). Adjust the seasoning to your taste and serve hot.
Finish with a squeeze of fresh lemon and garnish with chopped parsley.