Combine 250g of cooked ground beef, leftover from another meal, with 4 tablespoons of melted butter, salt, and pepper in a pan. After heating everything, add 100g of shredded ham. Let it cook for an additional 2 minutes. Then, remove it from the heat, and mix in half a teaspoon each of mustard and pepper. Once the beef has cooled, place a layer between slices of pre-greased bread.
Combine 250g of cooked ground beef, leftover from another meal, with 4 tablespoons of melted butter, salt, and pepper in a pan. After heating everything, add 100g of shredded ham. Let it cook for an additional 2 minutes. Then, remove it from the heat, and mix in half a teaspoon each of mustard and pepper. Once the beef has cooled, place a layer between slices of pre-greased bread.