Smoked Mozzarella Frittata with Spring Arugula

Name: Smoked Mozzarella Frittata with Spring Arugula
Ingredients: 1 tablespoon olive oil; 3 tablespoons yellow onion diced; 2 garlic cloves minced; 1 cup shredded sweet potato; 1/4 teaspoon salt; 1/4 teaspoon ground black pepper; 1-1/2 cups lightly packed arugula; 6 eggs lightly beaten; 4 ounces smoked mozzarella diced; 1 tablespoon grated Parmesan cheese