In a small bowl, combine 2 tablespoons of softened butter, 1/2 tablespoon of garlic powder, and 1/2 teaspoon of dried parsley. Mix well until a smooth paste is formed.

Spread the garlic butter mixture generously on one side of each slice of bread.

Place two slices of bread, butter-side down, onto a preheated skillet over medium heat. Add half of the shredded mozzarella and cheddar cheese evenly.

Top with the remaining bread slices, butter-side up, to form two sandwiches.

Reduce heat to low and cook the sandwiches for about 4-5 minutes until golden brown.

Flip the sandwiches over and cook for an additional 4-5 minutes until both sides are golden.

Remove from skillet, allow to cool slightly, then slice in half and serve.