Cook the pasta in a large saucepan of salted boiling water following packet directions or until al dente. Drain well.
Meanwhile, place garlic, lemon rind, half the basil and half the oil in a mortar and gently pound with a pestle until crushed. Add anchovies and remaining basil and oil and pound until combined. Season with sea salt flakes and pepper.
Add the basil mxture to the hot pasta along with the lemon juice and parmesan, and gently toss to combine. Add the tomato and feta and toss to combine. Divide among bowls to serve.