Green Shell Salad
1 (12 ounce) package small shell pasta
1/2 cup fat-free plain yogurt
1/2 cup reduced-fat mayonnaise
1/2 cup minced fresh parsley
1/2 cup minced fresh basil
2 tablespoons olive or canola oil
3 green onions, sliced
2 teaspoons lemon juice
2 garlic cloves, peeled
1/2 teaspoon salt
1/8 teaspoon pepper
1/3 cup grated Parmesan cheese