RE: Meatloaf Sandwiches
Rick F, not only eggs but the starch filler help bind the loaf together. My mom used to use rolled oats, and I use crumbs of oatmeal bread. Not just tomatoes, but any vegetable will help bind it too. Also, a combination of ground meats helps, especially ground veal. That's the point of meatloaf: which ground meats are on sale, and what seasonings do YOU feel like--today?
Here's my meatloaf sandwich from the days of working somewhere with an oven but no microwave. On a jelly roll pan, place 2 slices of bread, mayo them, then cover with meatloaf slices. Cover THAT with slices of muenster cheese, then bake until the cheese melts. Before you slap it together, add a little barbecue sauce. The meatloaf will be warm and the bread toasted.