Bring a large pot of water to a boil. Add a generous amount of salt, then add pasta. Cook until al dente.
Just before pasta is done, heat oil in a large skillet. Add pepperoncini and half of the garlic; toss to heat through.
Reserve 1 cup of pasta-cooking water, then drain pasta.
Add pasta to skillet and stir. Add just enough reserved pasta water to moisten; stir in garlic and herbs. Stir in cheese, then season with salt and pepper. Drizzle with more olive oil and shaved Parmesan, if desired.