Mushroom and Chive Frittata | America's Test Kitchen

Ingredients

• 12 large eggs
• 1 1/2 ounces Parmesan cheese, grated (3/4 cup)
• 1/4 cup minced fresh chives
• 3 tablespoons half-and-half
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
• 2 tablespoons extra-virgin olive oil
• 10 ounces cremini mushrooms, trimmed and sliced thin
• 6 ounces shiitake mushrooms, stemmed and sliced thin
• 1 onion, chopped fine
• 2 garlic cloves, minced