Put onion, squash, and parsley in medium sized bowl. Add ground turkey, 1 tsp of the za’atar, ½ tsp of salt, ¼ tsp ground cumin and all the cardamom. Mix with hands and form mixture into 8 small patties or kebabs. (I like to freeze them for easier handling.) Sprinkle with remaining za’atar, on both sides.
Heat oven to 425 degrees Fahrenheit. I heat a grill pan in the oven while the oven is heating. Put patties on grill pan and cook for 15-20 minutes, until internal temperature of patties is 165 degrees Fahrenheit.
While patties are cooking, mix yogurt, remaining cumin, cayenne pepper and lemon juice.
Can be served with pitas.
Make the za'atar by putting all ingredients into spice grinder and pulsing several times. Store in a cool, dark place for up to six months.