1. In large skillet saute apples and onions in butter for 10 minutes.
2. Transfer to a 13 x 9 x 2 baking dish coated with cooking spray. Top with chicken and sprinkle with salt, pepper and garlic.
3. Combine cheeses, bread crumbs and thyme and sprinkle over chicken. Drizzle with apple juice.
4. Bake uncovered at 350F for 30-35 minutes, or until chicken juices run clear.