In a blender or food processor, blend cottage cheese, Greek yogurt, vanilla extract, lemon zest, lemon juice, and monk fruit sweetener until smooth and creamy (about 10-15 seconds). Avoid over-blending. Place mixture in the fridge.
Crush graham crackers in a ziplock baggie until fine crumbs remain. Add 1.5 tbsp of crushed graham crackers to the bottom of each jar.
Spoon lemon cheesecake filling into the jars and top with blueberry compote if desired. For the compote, heat frozen blueberries in a saucepan over medium-low heat for 3-5 minutes, then let cool before adding to the jars.
Garnish each jar with lemon zest, and enjoy chilled.