Preheat oven to 400°F.
Line a large, rimmed baking sheet with a piece of parchment paper or a Silpat® baking mat.
Pat artichoke hearts dry. Transfer to a large bowl.
Add 1 tablespoon olive oil, 1/2 teaspoon Italian seasoning and the minced garlic. Season with salt and black pepper, to taste. Toss to combine.
Arrange seasoned artichokes on the prepared baking sheet in a single, uniform layer.
Place in pre-heated oven to roast until tender and slightly browned around the edges, approximately 20 - 25 minutes.
While the artichokes roast, combine fresh arugula, tomatoes, red onion, capers and fresh herbs in a large salad bowl. Mix well. Set aside.
In a small bowl, combine remaining olive oil with balsamic vinegar, fresh lemon juice, Dijon mustard and remaining Italian seasoning. Season with salt and black pepper, to taste. Whisk together until emulsified. Set aside.
Remove artichokes from oven and cool for several minutes before adding to the salad. Toss to combine.
Top with fresh Mozzarella.
Garnish with fresh herbs, if using, and serve immediately with prepared balsamic dressing.