Pre-heat oven to 400F (200C). Grease and flour or spray a medium muffin tin.
Roll out the puff pastry (either store bought or Homemade) to a 1/8 inch thickness (I probably rolled mine a bit thicker).
In a medium bowl mix together the chopped strawberries, sugar and lemon juice, set aside.
Cut with a sharp knife or using a square cookie cutter, cut to about a 2 - 2 1/2 inch square. Then place each square in the prepared muffin tin, with a fork, prick each square a few times.
Place a teaspoon of the spread or chocolate chips on the bottom of the pastry, then divide the strawberry filling between the tarts.Bake for approximately 15 minutes, check after about 10 minutes, if the strawberries are browning too much, then cover them with foil and continue baking.Once out of the oven, sprinkle with a few chips, and let cool on a wire rack. Dust with powdered sugar or drizzle with a little maple syrup if desired. Enjoy!
I made 8 tarts with my homemade puff pastry (about half the dough) but the filling will probably fill up to 10 tarts.