Pesto Sauce
["1 c. packed basil leaves", "1/3 c. olive oil", "1/4 - 1/2 c. Parmesan cheese (grated)", "1/4 c. pine nuts", "2 large cloves garlic", "salt to taste", "1/2 c. fat free yogurt (optional)"]
["Blend or puree together all ingredients in a blender or food processor.", "Add salt and Parmesan cheese to taste.", "(You may freeze pesto for later use.)", "To make a creamy pesto, mix with yogurt before serving."]
["basil", "olive oil", "Parmesan cheese", "pine nuts", "garlic", "salt", "yogurt"]