1. Heat oven to 400 degrees.
2. Grease 10-inch glass pie plate.
3. Combine cheese, chicken, broccoli and onion in prepared pie plate.
4. Combine remaining ingredients in blender container or in bowl of electric mixer; mix at high speed until smooth.
5. Pour over ingredients in pie plate.
6. Bake 25-30 minutes or until knife inserted in center comes out clean.
7. Cool 5 minutes before serving.
8. Garnish with tomato wedges, if desired. 8 Servings Variation: For broccoli cheese pie, use two 10-oz. pkg. frozen chopped broccoli, thawed, drained; omit chicken.
