Heat oven to 400 degrees. Lightly grease any pie plate. Mix broccoli, onion, green pepper and cheese in pie plate. Beat remaining ingredients until smooth, 15 seconds in blender or 1 minute with a hand beater. Pour over other ingredients in pie plate. Bake 35 to 40 minutes, or until golden brown and knife inserted comes out clean. Let stand for 5 minutes before cutting. This recipe is a quick dinner and can be easily doubled for company.