Very Vegetable Frittata

Bahan-bahan (4 porsi)

• 4 large eggs
• 3 large egg whites
• 1 cup nonfat milk
• 1 tablespoon chopped chives
• 1 teaspoon Dijon mustard
• ⅓ cup finely chopped onion
• 1 cup chopped mushrooms
• 1 cup chopped broccoli
• 1 cup chopped cauliflower
• 1 cup chopped zucchini
• 1 cup halved cherry or pear tomatoes
• ⅓ cup crumbled feta cheese
• salt and pepper, (to taste)
• arugula, (for serving (completely optional))