Cook pasta: Cook the pasta to al dente, according to the package directions. Drain and rinse with cold water.
Make the dressing: While the pasta is cooking, make the dressing. In a small bowl, add the olive oil, lemon zest, lemon juice, salt, garlic powder, Italian seasoning, and black pepper. Whisk to combine.
Add: Place the cooled pasta in a large bowl and add the arugula, parmesan cheese, and capers.
Pour and add: Pour the dressing over the pasta, and carefully toss to combine. Last, sprinkle on the cherry tomatoes, and give the pasta one more gentle toss to make sure everything is well coated with the dressing.
Chill and serve: Cover the bowl of pasta and place it in the refrigerator for an hour to chill, and let the flavors combine. Remove from the refrigerator, toss, taste, and adjust the seasonings to your liking. Serve with extra parmesan cheese and lemon wedges.