Spinach Frittata

Ingredients (11)

• 12 large eggs, room temperature, beaten
• 1 cup half-and-half cream
• 1-1/2 teaspoons kosher salt
• 1 teaspoon grated lemon zest
• 1/2 teaspoon coarsely ground pepper
• 2 green onions, sliced
• 1/2 cup grated Parmesan cheese
• 2 tablespoons olive oil
• 1 small onion, chopped
• 8 ounces fresh spinach
• 1 tablespoon minced chives