India, Dec. 22 -- Christmas mornings carry a different rhythm, where slow starts, shared conversations, and time around the table matter most. Breakfast casseroles fit naturally into this setting because they are planned ahead, baked fresh, and served warm as everyone gathers after the celebrations begin. Their popularity grew in mid-20th-century holiday cooking, where large families needed simple, reliable breakfasts.

The idea of a breakfast casserole comes from layered winter dishes common in European and American kitchens. Bread, grains, eggs, and dairy were baked together to create filling meals that could serve many people at once. Over time, these recipes became closely linked with Christmas mornings, where the focus shifted from c...