This is my daughter's recipe:
For the pasta we use tortellini stuffed with cheese. I made this for a Greek Feast in Santa Barbara and it was a big hit.

TOMATO GREEK PASTA SALAD

1/4 cup lemon juice
3 cloves garlic
1 1/2 teas. chopped fresh basil, or 1/2 teasp. dried basil
3/4 teasp. salt
1/2 teasp. pepper
3/4 cup olive oil
8 ounces pasta, shells or other pasta
2 pounds tomatoes, (about 4 large), peeled, seeded and diced
1 1/2 cups celery
1 cup cucumbers, peeled, seeded and sliced
1 cup sliced black olives
4 ounces feta cheese, crumbled
2 teasp.fresh chopped parsley

Combine lemon juice and next 4 ingredients. Beat in oil. Place all chopped vegetables and put in a large bowl. Pour dressing over vegetables and pasta, gently folding. Chill.