We found that 3 eggs was not enough it looked too dry we used a total of 6 eggs. The premade pie crust was not enough to fill the cast iron we have to use 1 and 1/2 probably had too big of a pan and a lot of quiche filling as well. Maybe break into 2 pie or a bigger baking dish.
A lot of this is a choice if you want more meat or less meat or more vegetables or less that’s up to you.