Greek Chicken

Yield:	6 Servings
Categories:

3 1/2	lb	Boned and skinned chicken breast halves
1/2	ts	Garlic powder
1/2	ts	Oregano
1/2	c	Olive oil
8	oz	Onion, chopped
2	ts	Seasoned salt
1/4	ts	Whipped margarine
1/2	ts	Coarsely ground pepper
6		Tomato wedges