Sweet Potato, Beets, Chicken and Potato

So we went to visit some friends who have moved up to Midway/Heber and ate dinner with them. The food was so good we have tried to duplicate it 3 times this last week. Each time with different ingredients and outcomes. It's very simple.

1 large sweet potato
3-4 potatoes
1 large breast of chicken sliced into 4 smaller pieces
1 large beet

Cut the potatoes and sweet potato into 1/4" thick wheels.

Place all contents into a large zip lock bag. You may need 2 bags.

Add some olive oil, salt, pepper, rosemary. One time I used some oregano and lemon juice.

Spread out contents on a cookie sheet and cook for 20min at 400mph.

Nothing fancy, but is a solid meal in our chilly weather.