Place Brussels sprouts in between bacon slices on a parchment paper lined baking sheet. Drizzle sprouts lightly with olive oil and season them with salt and pepper. Bake at 400, 20-25 minutes until bacon is done and sprouts are beginning to char. Drain bacon well on paper towels and cut into 1 inch pieces

Bake crust according to package directions, removing when just done. It will brown further when returned to oven with toppings. Top with 1 cup alfredo sauce and spread into a thin layer. Add sprouts and bacon pieces. Sprinkle with bleu cheese and Parmesan. Drizzle with a little more alfredo sauce if desired. Return to oven for about 10 minutes, until cheese has melted and crust is golden. Cut into 8 or 12 large squares for serving, or mini squares for appetizers.