Make the crust: In a bowl, combine almond flour, melted butter, sweetener, vanilla, and salt. Stir until it looks like damp sand and clumps slightly when pressed.
Press into jars: Divide the crust evenly among the jars.
Use the back of a spoon to press it down firmly. Set aside.
Whip the cream: In a cold bowl, beat the heavy cream to soft peaks. Don’t overbeat; you want it fluffy, not grainy.
Beat the cream cheese: In another bowl, beat the softened cream cheese with sweetener, vanilla, lemon juice, and a pinch of salt until smooth and creamy.
Fold it together: Gently fold the whipped cream into the cream cheese mixture in two additions, keeping the mixture light and airy.
Layer the cheesecake: Spoon or pipe the cheesecake layer evenly into the jars over the crust.
Smooth the tops.
Make the strawberry topping: Combine diced strawberries with sweetener and lemon juice. If you want a thicker, jammy texture, stir in chia seeds and let sit 5–10 minutes.
Top and chill: Spoon the strawberries over the cheesecake layer. Cover and chill for at least 1 hour to set the texture and meld flavors.
Serve: Enjoy straight from the jar.
Add a mint leaf or a dollop of whipped cream if you like.