Greek Lemon Chicken

3 lbs boneless, skinless chicken breasts
2 tsp dried oregano
1/2 tsp salt
1/2 cup olive oil
1/4 cup lemon juice
2 cloves garlic, crushed
1/4 tsp black pepper
1 lemon sliced

Preheat oven to 375 F.  Arrange chicken in a 13x9 inch baking dish.  In a bowl, combine lemon juice, oregano, salt and pepper.  Pour over chicken.  Cook  the chicken until well done, 40-45 minutes.  Brush olive oil over chicken every 5 minutes, occasionally turn the chicken.  During the last 5 minutes, top with lemon slices. 

Serves 8