Preheat the oven to 450 F degrees.Place the potato fries in a single layer on a baking sheet, no need to grease the baking sheet. Bake the fries for 15 to 18 minutes or until golden and crispy.In the meantime, prepare the gravy. In a small saucepan, melt the butter over medium-high heat. Add the flour and whisk until it becomes paste and it slightly turns brown. Add the beef broth a little bit at a time, whisking constantly until all the broth has been added. Continue to cook for a another minute or so until the gravy thickens. Season with salt and pepper.To assemble the fries, place the fries in a plate, drizzle generously with gravy, top with bacon, banana peppers, green onions, tomatoes and parsley, then finish off with a drizzle of mayonnaise.