Yes, I used pre-made pie crust with my proven trick: Roll crust, fit into deep dish Pyrex, place in freezer for 10 minutes. Preheat oven to 375 F.. Bake slightly frozen crust for about 8-10 minutes, until slightly brown (no blind baking, no beans etc.) Sprinkle bottom with cheese. (moisture barrier).
When Broccoli mixture has cooled, stir in shredded sharp cheddar cheese. Separate bowl— whisk 3 eggs and 1 1/2 cups evaporated milk (fewer calories than heavy cream and just as tasty.)
Spread broccoli onion mix into pie crust. Pour liquid over. Bake at 375 for approximately 35 minutes. Sprinkle with shredded cheese about 30 minutes in. YUM!