What do you do with leftover meatloaf? Growing up, we ate them as sandwiches. The leftover meatloaf was never heated. Mayonnaise (Best Foods, of course) and ketchup were the preferred condiments. (I think in a previous post I talked about eating foods cold, this is definitely one that works.)
Nowadays, we eat them on whole grain bread, mayo slightly spread on the bread with a little ketchup. Oh, and the meatloaf was actually a beef/tofu mixture, using leftover tofu.
A little healthier than what I remembered as a kid, but still just as good.