Using a stand mixer with the paddle attachment (or hand mixer), combine ingredients until dough comes together and looks like crumbly cookie dough. You can also process the ingredients in a food processor.
Press the dough evenly into a 9-inch-tart pan with a removable bottom. If the dough is sticky, dust your hands with flour and continue on. Poke holes all over the bottom of the tart with a fork. Place tart in freezer for 15 minutes.
Preheat oven 375 degrees.
For a partially-baked tart shell that you will fill and bake again, bake tart shell for 15-20 minutes or until lightly browned. For a fully-baked tart shell, that you will not bake again, make sure the tart is a deep golden brown color, cooking it for 25-35 minutes.
Using a stand mixer, with the paddle attachment (or a hand mixer), mix cream cheese until light and fluffy.
Add sifted powdered sugar, vanilla, and lemon juice. Mix until just smooth. Do not over mix because the filling may separate.
Spread filling onto tart shell, about ¼-inch thick.
Decorate tart with 3 cups of fresh seasonal fruits.
In a small pot, heat apricot jam with water. When it boils, immediately strain into a small container and brush glaze onto fruit.