1. Cook potatoes in salted water until tender. Drain.
2. Heat oil in large frying pan; add onion and cook until light browned.
3. Add chicken or turkey and potatoes. Stir well and cook for five minutes, pressing down with spatula to form flat cake.
4. Lower heat and pour in gravy.
5. Sprinkle with salt, pepper and garlic powder.
6. Cook for five more minutes.
7. Turn out on serving platter and sprinkle with parsley.