Spring Green Frittata

Name: Spring Green Frittata
Ingredients: 2 eggs, lightly beaten; 4 egg whites; 2 tablespoons fat-free milk; 1 teaspoon snipped fresh chives; ⅛ teaspoon black pepper; ¼ cup finely shredded Parmesan cheese (1 ounce); 2 teaspoons olive oil; ½ cup 1/2-inch pieces asparagus; ¼ cup sliced green onions; ½ cup coarsely chopped spinach leaves; 1 clove garlic, minced; 1 small roma tomato, chopped