Preheat a non-stick skillet or grill pan over medium heat. Add butter to the pan.

Place one slice of whole wheat sandwich bread on a clean surface. Sprinkle shredded cheese on top.

Place the second slice of bread on top to form a sandwich.

Carefully transfer the sandwich onto the skillet or grill pan.

Cook the sandwich for about 2-3 minutes on each side, or until the bread turns golden brown and the cheese is melted and gooey.

Once toasted, remove the sandwich from the pan. Slice it diagonally if desired and enjoy!