Drain and return the pasta back to the pot. Add the artichokes, lemon butter sauce, parsley, salt, and several grinds of pepper and toss to coat. If the pasta looks too dry, add the reserved pasta water, ¼ cup at a time, until lightly saucy. Portion into bowls and top with the pine nuts and mint leaves. Serve with lemon wedges and pecorino cheese, if desired.