Combine vinaigrette ingredients in a glass jar and shake well. Add salt and pepper to taste.
Drizzle both cut sides of baguette with vinaigrette. Layer olives, bell peppers, Brandt Westfalian Ham, and Zerto Fresh Mozzarella on bottom half of baguette. Top with arugula, drizzle with more vinaigrette.
Add top half of baguette and gently push down, cut into 4-6 sandwiches.