Greek Meatballs with Lemon and Arugula

Name: Greek Meatballs with Lemon and Arugula
Ingredients: 1/3 cup converted rice; 3 large eggs; 1/2 pound lean ground lamb; 1/2 pound lean ground beef; 1/2 cup chopped deli-sliced provolone cheese (about 2 ounces); 1 small onion, finely chopped; 1/3 cup chopped fresh mint; 1/4 cup chopped fresh parsley; 1 teaspoon finely chopped fresh marjoram (or 1/2 teaspoon dried); 2 cloves garlic, minced; 1/4 teaspoon ground allspice; Kosher salt and freshly ground pepper; 3 cups low-sodium chicken broth; 1/3 cup fresh lemon juice (from about 3 lemons); 3 cups baby arugula; Extra-virgin olive oil, for drizzling