Prep the pan: Line a 12-cup muffin tin with paper liners, or use silicone cups for easy release.
Make the crust: In a bowl, mix almond flour, melted butter, powdered sweetener, vanilla, and a pinch of salt until sandy and evenly moistened.
Press the crust: Divide the mixture among the cups (about 1 tablespoon each). Press firmly with the back of a spoon to form a compact base. Chill while you make the filling.
Whip the cream: In a cold bowl, whip the heavy cream to soft peaks.
Set aside.
Beat the cream cheese: In another bowl, beat softened cream cheese with powdered sweetener, lemon juice, lemon zest, vanilla, and a pinch of salt until smooth and fluffy, about 2 minutes. Scrape the bowl as needed.
Fold it together: Gently fold the whipped cream into the cream cheese mixture in two additions until creamy and no streaks remain.
Fill the cups: Spoon or pipe the filling over the crusts, dividing evenly. Smooth the tops with a spatula.
Chill to set: Refrigerate for at least 2 hours, preferably 3–4, until firm.
Prep the strawberries: Toss diced strawberries with lemon juice and sweetener if using.
Let sit 10 minutes to macerate.
Top and serve: Add strawberries to each cup just before serving. For extra flair, garnish with a small lemon zest sprinkle.