Cook the pasta al dente according to package directions and drain
Add the pasta to a large serving bowl and toss with cooked and cooled seafood, tomatoes, fresh herbs, shallots, capers, pimentos, chopped olives, and lemon juice.
Add olive oil and toss.
Mix the mustard and vinegar until smooth.
Toss all of the ingredients again.
Decorate the top of the mixture with ripe olive slices and grated zucchini
Serve at room temperature or slightly chilled