Easy and awesome! A good use of leftover meatloaf! I used the cheesy turkey meatloaf from this site.
Place meatloaf slices in a nonstick pan over medium heat. Lay 2 Cheddar cheese slices over each. Cook until meatloaf is heated through and browned on the bottom, 3 to 5 minutes. Flip 1 piece of meatloaf over the other so cheese is in the middle.
Spread mayonnaise, ketchup, and mustard over toast. Add cheesy meatloaf and sandwich the toast together.
Per Serving: 690 calories; protein 52.8g; carbohydrates 40.2g; fat 34.4g; cholesterol 206.4mg; sodium 1046.9mg.