PREHEAT oven to 350º F.
WHISK sour cream, evaporated milk, 1/4 cup cheese, eggs, salt and pepper in medium bowl; pour into pie shell. Combine remaining cheese, breadcrumbs, basil and garlic in small bowl; sprinkle over sour cream mixture. Top with tomatoes and olives.
BAKE for 50 to 60 minutes or until knife inserted near center comes out clean. Cool on wire rack for 5 minutes before serving.