Step 1

Fill a large pot with lightly salted water and bring to a rolling boil over high heat. Once the water is boiling, stir in the penne, and return to a boil. Cook the pasta uncovered, stirring occasionally, until the pasta has cooked through, but is still firm to the bite, about 11 minutes. Rinse with cold water and drain well in a colander set in the sink.

Step 2

Whisk together the vinegar, lemon juice, garlic, oregano, salt, pepper, and olive oil. Set aside. Combine pasta, tomatoes, onion, green and red peppers, cucumber, olives, and feta cheese in a large bowl. Pour vinaigrette over the pasta and mix together. Cover and chill for 3 hours before serving.