Preheat oven to 375 degrees F. Line a baking sheet with foil or parchment paper.
Cut baguette into 1 inch slices, but only cutting 3/4 of the way through. Be sure not to cut all the way through.
In a small bowl, combine butter, garlic powder, cajun seasoning, and dried parsley. Mix well.
Using a brush or knife, spread butter mixture evenly in between the slices and over the top of the loaf.
Sprinkle the top of the loaf with parmesan cheese.
Place garlic bread on prepared baking pan and bake for 8-10 minutes or until the cheese is melted and the bread starts to turn golden brown.
Tear or cut into pieces and serve warm.