3 slices 100 percent whole wheat bread, cut into 1/2-inch cubes6 large eggs, beaten12-ounce box frozen cooked pureed winter squash, thawed and drained1 cup shredded reduced-fat cheddar cheese1/3 cup grated Parmesan cheese2 tablespoons real bacon or vegetarian-style bits or 2 slices cooked bacon, crumbledpure maple syrup or ketchup, optional