In the bowl of a stand mixer fitted with paddle attachment, beat cream cheese at medium speed until smooth, approximately 1 minute. Add sugar, beating until smooth. Add lemon zest and juice, beating until combined. Transfer cream cheese mixture to a medium bowl.
Thoroughly clean mixer bowl. Using whisk attachment, beat cream with mixer at medium speed until thickened. Slowly increase speed to medium-high and beat until stiff peaks form.
Using a whisk, fold in approximately half of whipped cream into cream cheese mixture until combined. Fold in remaining half of whipped cream.
Transfer cream cheese mixure to a piping bag. Cut a ¼-inch whole in piping bag tip. Pipe cream cheese mixture into tartlet shells until full. Cover and refrigerate until ready to serve.
Just before serving, shingle approximately 5 raspberry halves on each tartlet.
Garnish with mint, if desired.
Notes
Tartlet shells such as these can usually be purchased from grocery store bakeries.
Recipe by TeaTime Magazine at https://teatimemagazine.com/creamy-lemon-raspberry-tartlets-recipe/