Preheat oven to 400 degrees F.
Spread butter over one side of each baguette slice. Arrange baguette slices on baking sheet, butter side up. Bake until golden, approximately 10 minutes. Remove from oven and cool. NOTE: These can be made ahead of time and stored in an airtight container. Be sure to let cool completely before storing.
Reduce oven temperature to 350 degrees F.
In a medium bowl, mix walnuts, Gorgonzola cheese, and arugula leaves. At this point, mixturemay be refrigerated until ready to use.
When ready to serve, spread walnut-cheese mixture evenly on top of each baguette slice, pressing in to adhere. Season with pepper. Bake just until cheese melt, approximately 6 minutes. Remove from oven and cool slightly.
Arrange crostini on serving platter and garnish witharugula leaves.
Makes 6 servings.
* Blue Cheese may be substituted.
Walnut, Arugula, and Gorgonzola Crostini Recipe: https://whatscookingamerica.net/appetizers/gorgonzolacrostini.htm