Combine olive oil, lemon juice and Mrs. Dash® Garlic & Herb Seasoning Blend in a bowl. Mix until well combined. Using a whisk, blend the yogurt and sour cream into the olive oil mixture. Chill for at least 2 hours before serving. Serve with an assortment of fresh cut vegetables such as carrots, cucumber, celery, cauliflower, broccoli, red, green or yellow pepper strips or grape tomatoes (Optional:Garnish with chopped fresh parsley just before serving).