In a medium saucepan, combine strawberries, granulated sugar and lemon juice.
Cook on medium heat until the strawberries soften.
Mash the strawberries with the back of a spoon.
Cook until the mixture reduces and thickens.
Using a knife or small offset spatula, spoon the strawberry sauce onto the cheesecake cups and spread evenly.
Serve immediately or seal the cups with a lid and chill, in the refrigerator, for up to 3 days.