Frittata with Cheese, Sun-Dried Tomatoes, and Basil

INGREDIENTS

• 1/2 teaspoon salt
• 1/4 cup (1/2 stick) butter
• 1/3 cup fresh basil leaves, finely chopped
• 10 drained oil-packed sun-dried tomatoes, finely chopped
• 4 green onions, thinly sliced
• 10 large eggs
• 1/4 cup whipping cream
• 1/4 teaspoon ground black pepper
• 1/3 cup pitted Kalamata olives, thinly sliced
• 3 tablespoons freshly grated Parmesan cheese
• 1 1/2 cups crumbled feta cheese (about 6 ounces)