Hawaiian Bacon & Pineapple Breakfast Bake

In a large bowl, whisk eggs, milk, Worcestershire sauce and mustard until blended. Stir in cheeses, bacon, ham and pineapple. Gently stir in cubed rolls. Transfer to a greased 13x9-in. baking dish. Refrigerate, covered, several hours or overnight., Preheat oven to 350°. Remove casserole from refrigerator while oven heats. Bake, uncovered, 35-45 minutes or until golden brown and a knife inserted in the center comes out clean, sprinkling with onions halfway through baking. Let stand 5-10 minutes before cutting.