Make-ahead Mashed Potato Casserole with Bacon kitchensanctuary.com Creamy, buttery, cheesy, bacon-y mashed potato, topped with caramelized onions plus MORE golden, bubbling, melted cheese and crispy bacon bits. It really is mashed potato heaven. submitted by KitchenSanctuary comfort food gluten free side make ahead side dishes mashed potato potato side dish Entry Permalink Report Post