While the crust is cooling, make the ice cream.
Pour the heavy cream in a small saucepan and place it over medium heat. Add the sugar, salt and lemon zest and stir until the sugar dissolves. Once steam begins to form on the surface of the cream, remove the pan from the heat.
Pour 2-3 ladles-full of the hot cream mixture over the egg yolks and whisk immediately to temper the eggs. Pour the egg mixture into the cream and whisk to combine.
Strain the custard into a bowl set inside an ice bath. Whisk the custard until luke warm, about 10 minutes. Set the custard aside.
Place the ricotta and honey in a food processor and blitz until very smooth. Whisk the ricotta mixture into the chilled custard mixture. Pour the ice cream into an ice cream maker and process for 30 minutes or until the ice cream resembles soft serve.
In the last five minutes of processing the ice cream, drop fresh raspberries into the ice cream maker one at a time.
Scoop the ice cream out of the maker and pour it into the Ladyfinger Almond Crust. Smooth out the surface using an offset spatula. Cover the pie with plastic wrap and transfer to the freezer. Let freeze for 3 hours or overnight.