Heat olive oil in a large skillet over medium-high heat. Add garlic; sauté 1 minute. Add salt and spinach; sauté 3 minutes or until the spinach wilts. Place spinach mixture in a colander, pressing until mixture is barely moist.
Place spinach mixture, basil, cream cheese, and pepper in a food processor; process until smooth. Spoon spinach mixture into a medium bowl. Add yogurt and Parmesan; stir to combine. Chill.