Here's a list I have made over the years of what to do with Holiday leftovers.
Turkey and Chicken:
Turkey/Chicken Noodle/Rice Soup
Turkey/Chicken Enchiladas
Turkey/Chicken Sandwiches
Turkey/Chicken Tetrazzini
Hot Turkey/Chicken Sandwiches w/ gravy
Turkey/Chicken Tamales
Turkey/Chicken Tacos
Turkey/Chicken Pot Pie
Turkey/Chicken Jambalaya
Pulled BBQ sandwiches
Ham:
Cube and add to beans or soup, especially if you have the bone to work with.
Finely chop the ham, and use for omelets, or for some Jambalaya.
Slice it thin and use for sandwiches.
Add diced ham to salads.
Roast Beef:
Pulled BBQ sandwiches
Tamales
Tacos
Pot Pie
Slice thinly, and use for sandwiches
Roast Pork:
Pulled BBQ sandwiches
Slice thinly, and use for sandwiches
Mashed Potatoes:
Potato Pancakes
Potato Pierogies
Potato Latkes
Duchess Potatoes
Shepard’s Pie
Potato Croquettes
Gnocchi
Sweet Potatoes:
Mash and add to muffin mix
Rice:
Soup (see above)
White rice, rice pudding
White rice, Chinese fried rice
White rice, add to pancake/waffle batter
White rice, add to meatloaf
White rice, added to pancake and waffle batter
White rice, casseroles
White rice, eaten cold, with milk and sugar, as a breakfast cereal (One of my grandmothers tells me this is the only way she ever ate rice as a child.)
Bread:
If they are hard and dry, use for stuffing, or grind into bread crumbs.
Cut into cubes, dry in a 200°F oven for an hour, and then turn into croutons.
Bread pudding
If you have to make a large amount of bacon or sausage, line the plate or pan with old bread. The bread will absorb the grease.
Cranberries:
Whole cranberries, not the jellied canned stuff, simmer with a little simple syrup and make a cranberry syrup with it.
Cooked Pasta:
Pasta Salads
Tetrazzini or other casserole
Old Desserts/Cakes:
Save all your old cakes, cupcakes, sweet pastries, etc. and make a bread pudding out of them.
Save a stale cake, and get rid of any frosting. Run the cake in pieces through your food processor, grinding it into crumbs. Use the resulting cake crumbs as decorations on cakes, or in recipes calling for cake crumbs, like Rum Balls or a Linzer Torte.
For large family gatherings, give away as many leftover’s as you can. Cheap ziplock reusable containers are great for this.