If using uncooked pasta, cook the pasta in a large pot of boiling salted water until al dente, according to package instructions. Drain and let cool.

In a large skillet, heat extra virgin olive oil over medium heat. Add the finely chopped anchovies, peperoncino flakes, and chopped garlic. Stir regularly until the garlic softens and the anchovies begin to break down. Be careful not to brown the garlic.

In a large mixing bowl, combine the cooled pasta with the garlic and anchovy mixture. Add the already beaten eggs into the bowl with the chopped parsley, and season with salt and ground black pepper. Stir thoroughly until well combined.

Pour the pasta and egg mixture into a large non-stick frying pan. Cook until the bottom side is nicely browned and slightly crispy. Then, carefully flip the frittata to cook the other side until it is similarly browned and crispy.

Slice and serve the frittata immediately, garnished with additional chopped parsley.