Trim any skin or fat from the chicken. Generously brush the olive oil over all sides, tops & bottom of the chicken.
Sprinkle half the lemon pepper seasoning onto the bottoms of the chicken breasts.
Place the chicken breasts, bottom side down into a baking pan. For these 2 large sized chicken breasts, I used a square baking pan, when using 4 small-medium breasts you can use a 13x9 inch pan.
Bake the chicken in a 350º oven for 30 minutes. Use a meat thermometer if you aren't comfortable judging when the chicken is done, you don't want it to be over cooked and dried out.
Peel your potatoes and cut them into chunks. Boil them until they are very tender.
Drain the potatoes in a colander, add the potatoes to a large bowl. Next add about 1/4 -1/3 cup milk and 8 tbsp butter, mash the potatoes well.
Mashed potatoes are something that is so easy to make to taste. As you add the milk or cream, the butter, the sour cream, and the cheese, taste after each addition. Add more of anything that feels right. I like my potatoes heavy on the salty/butter flavor.