01 - Pulse flour, powdered sugar, and salt in a food processor. Add cold butter cubes and pulse until mixture resembles coarse crumbs. Add egg yolk and 1 tablespoon cold water, pulsing until dough begins to come together. Add additional water only if needed for dough to form.
02 - Gather dough into a ball, flatten into a disk, wrap in plastic, and refrigerate for 30 minutes.
03 - Preheat oven to 350°F. Roll out chilled dough and press into six 4-inch tart pans. Prick bottoms with a fork to prevent bubbling.
04 - Line shells with parchment paper and fill with pie weights. Bake for 12 minutes. Remove weights and parchment, then bake 8-10 minutes longer until golden brown. Cool completely before filling.
05 - Heat milk, heavy cream, and honey in a saucepan until just simmering. Meanwhile, whisk egg yolks, cornstarch, vanilla, and salt in a bowl.
06 - Gradually whisk hot milk mixture into egg yolks. Return mixture to saucepan and cook over medium heat, stirring constantly, until thickened about 3-4 minutes. Transfer to bowl, cover with plastic wrap directly on surface, and cool to room temperature.
07 - Whisk eggs, egg yolks, sugar, lemon juice, and zest in a saucepan. Cook over medium-low heat, stirring continuously, until thickened 5-7 minutes. Do not boil. Remove from heat and whisk in butter until smooth.
08 - Pour lemon curd into a bowl, cover with plastic wrap touching the surface, and refrigerate until set.
09 - Spoon honey custard into cooled tart shells, smoothing tops. Add a layer of lemon curd over custard. Arrange fresh strawberry slices on top and garnish with mint leaves if desired. Serve chilled.