Add the chopped tomato, zucchini, bell pepper, red onion, and parsley together in a large bowl. Drizzle the pasta with the vinaigrette and season with sea salt and freshly cracked pepper, to taste, then toss until evenly coated. Let the pasta sit for 10-15 minutes, stirring occasionally, to let the pasta soak up the vinaigrette. Sprinkle with feta cheese right before serving. Enjoy.