When it comes to sensible party fare, it's hard to beat this tempting dip that's loaded with spinach, sweet peppers, and yogurt.
Preheat oven to 350 degrees F. In a large bowl, stir together mozzarella cheese, yogurt, mayonnaise dressing, 2 tablespoons of the Parmesan cheese, the flour, and mustard. Stir in spinach, roasted red peppers, and 2 tablespoons of the green onions. Spread mixture evenly into a 1-quart ovenproof shallow dish or a 9-inch pie plate. Sprinkle with the remaining 2 tablespoons Parmesan cheese.
Bake for 15 to 20 minutes or until edges are bubbly and mixture is heated through. Sprinkle with remaining 2 tablespoons green onions. Serve with sweet pepper strips.