Roasted Vegetable Frittata

Name: Roasted Vegetable Frittata
Ingredients: 1 pound fresh asparagus, trimmed and cut into 2-inch pieces.; 2 small red potatoes, halved and thinly sliced; 1-1/2 cups sliced sweet onion (1/2 inch thick); 2 tablespoons olive oil, divided; 1/2 teaspoon salt, divided; 1/2 teaspoon pepper, divided; 4 large eggs; 1/2 cup 2% milk; 1 cup finely chopped fully cooked ham; 3 garlic cloves, minced; 1/2 cup shredded part-skim mozzarella cheese; 1/4 cup grated Parmesan cheese; 2 tablespoons minced fresh basil