Heat oven to 400 F. Greae pie plate, 10 x 1 1/2". Sprinkle shrimp, onions, basil and cheese in plate. Beat remaining ingredients until smooth, 15 seconds in blender on high or 1 minute with hand beaer. Pour into plate. Bake unti knife inserted in center comes out clean, 30-35 minutes. Cool 5 minutes.