Begin by allowing the cream cheese or coconut cream to come to room temperature, which usually takes about 30 minutes. Rinse and hull the strawberries or thaw frozen strawberries.

In a food processor, blend the prepared strawberries until smooth, about 30 seconds. Add the softened cream cheese or coconut cream, powdered sugar, and vanilla (if using). Blend until fully combined, 1-2 minutes.

Taste the mousse base and adjust sweetness with more powdered sugar if needed, blending until incorporated.

Transfer the mixture into a bowl, cover with plastic wrap, and refrigerate for at least 1 hour to firm and meld flavors.

Once chilled, gently stir the mousse and spoon it into serving dishes, layering carefully. Top with fresh strawberry slices or whipped cream if desired.