Marinate chicken in dressing if possible, for 3 hours (not necessary) if you have time. Pour dressing over chicken, just about 1/4 cup (not too much) ...squeeze half the lemon onto it...add garlic powder, paprika and if you like salt-pepper-oregano (optional). Meanwhile cut potatoes into quarters and boil 20 minutes. (Peeled or unpeeled whatever you want) while chicken is baking. Then add potatoes to chicken in oven. Squeeze other half lemon over potatoes and chicken, turn chicken, add more garlic powder and paprika. Bake, turning potatoes once or twice, another 30 mins. or until chicken is well done to your liking.