Preheat oven to 375 degrees.
Spray a 9 x 13 baking pan with non-stick cooking spray.
Toss potatoes and carrots with olive oil in the 9 x 13 baking pan.
Add salt & pepper.
Bake for 25 minutes.
While potatoes and carrots are baking combine bread crumbs, parmesan cheese and garlic powder in a bowl and mix lightly with a fork.
Remove pan from oven after 25 minutes.
Place chicken breasts in the middle of the dish. Add salt and pepper.
Cover generously with bread crumb mixture.
Drizzle with olive oil and lay Rosemary on top.
Bake for 40 min. uncovered.
If the chicken starts to brown too much cover loosely with foil.