Preheat oven to 350 degrees F. Lightly grease a 2-quart baking dish; set aside. In a large mixing bowl, whisk together eggs and milk. Add salt and cayenne. Gently fold in the potato chips, making sure they are completely covered by the egg mixture. Stir in arugula, cheese, cherry tomatoes, bacon, and basil. Transfer to the prepared baking dish.
Bake about 50 minutes until golden brown and a knife inserted near the center comes out clean. Let stand 10 to 15 minutes.
Top with additional arugula, parsley and cherry tomatoes.