Line a large rimmed baking sheet with parchment paper.
Stir yogurt, maple syrup (or honey) and vanilla in a medium bowl.
Spread on the prepared baking sheet into a 10-by-15-inch rectangle.
Scatter the strawberries on top and sprinkle with chocolate chips.
Freeze until very firm, at least three hours.
To serve, cut or break into 32 pieces.
