1Grease 2-quart casserole. In 10-inch skillet, melt butter over medium heat. Cook apples in butter 2 to 3 minutes, stirring occasionally, until crisp-tender. Stir in brown sugar; reduce heat to low. Cook 5 to 6 minutes, stirring occasionally, until apples are tender.
2Layer half each of the bread, bacon, apples and cheese in casserole. Repeat with remaining bread, bacon, apples and cheese.
3Mix all remaining ingredients; pour over cheese. Cover tightly and refrigerate at least 2 hours but no longer than 24 hours.
4Heat oven to 350ºF. Bake uncovered 40 to 45 minutes or until knife inserted in center comes out clean. Let stand 10 minutes before serving.