Italian Breakfast Frittata - Slender Kitchen

Ingredients

• 1 tbsp. olive oil
• 1/2 cup onion, diced
• 4 cups arugula
• 2 garlic cloves, minced
• 1 1/2 cups cherry tomatoes, halved
• 1 cup roasted red peppers, chopped
• 1 tbsp Italian seasoning
• 10 eggs, whisked
• 2/3 cup nonfat milk
• 1 tsp salt
• 1/2 tsp pepper
• 3/4 cup part skim shredded mozzarella
• 1/4 cup Parmesan