Preheat oven: Set oven to 425°F.
Make the jar-cuterie: In a medium bowl, combine cherry tomatoes, roasted red peppers, Castelvetrano olives, artichoke hearts, pickled red onions, banana peppers, pepperoni, mozzarella pearls, and ¼ cup Ken’s Tuscan Italian Dressing. Stir well and let marinate while you prepare the flatbreads.
Mix the cheese base: In another bowl, combine ricotta cheese, mozzarella cheese, and the remaining ¼ cup Ken’s dressing. Season with salt to taste.
Assemble the flatbreads: Place the flatbreads on a parchment-lined baking sheet. Evenly spread the ricotta mixture over each flatbread.
Bake: Transfer to the oven and bake for 10 minutes, or until the crust is crispy and the cheese is melted and bubbling.
Top and serve: Remove from the oven. Evenly distribute the arugula over the flatbreads, then spoon the marinated jar-cuterie on top. Serve immediately with extra Ken’s dressing for drizzling or dipping.