Season chicken with salt and greek spice and set aside for 1 hour (min 15 minutes).
Chop chicken into 2" cubes.
Coat a medium size pan with oil and heat at medium-high.
Add chicken and sautee until cooked through (10-15 minutes).
Cut pitas in half and open pockets (Note: if pockets are not opening, heat for 1 minute to allow pockets to open).
Spread 1 tbsp hummus on one side of each pita pocket.
Fill bottom of pita with spinach.
Top with cucumber, tomatoes, and red onion.
Sprinkle on parsley
Mix remaining ingredients in a bowl and add lemon, olive oil, salt and pepper for an excellent side salad.