Cook the waffles on a hot waffle iron and serve them right away. [substeps] You can top the waffles with chopped pecans or whipped cream.
[header] How to use leftover sweet potato casserole [title] Make waffles. [step] Create a flavorful waffle batter using basic ingredients and leftover sweet potato casserole. If your casserole is heavily spiced, you'll only need to add milk, eggs, butter, and baking powder.