Preheat oven to 350°F.
Cut the sweet potato ends off and insert into your spiralizer. Spiralize according to your spiralizer instructions.
Whisk together milk, eggs, red pepper, Parmesan, sea salt and black pepper well.
In a cast iron skillet, heat olive oil and add minced garlic. Heat until fragrant.
Add in sweet potato noodles and toss to heat. (about 3-5 minutes)
Add arugula and toss to mix in with the sweet potatoes until they start to wilt.
Pour egg mixture over sweet potato and arugula mixture.
Transfer to oven and bake for 20-25 minutes or until cooked through and edges begin to slightly brown.
Allow to cool 5 minutes and then serve.