Beat cream cheese until smooth, then mix in Greek yogurt, sweetener, vanilla, and lemon juice until creamy. Adjust sweetness as needed.
Prepare fruits: slice strawberries, dice pineapple, halve grapes, and wash blueberries. Pat dry to avoid excess liquid.
Gently fold fruits into the cheesecake mixture, reserving some for garnish. Mix carefully to coat without crushing.
Cover and refrigerate for at least 30 minutes to let flavors meld and firm the cream.
Serve chilled, garnished with reserved fruit and optional toppings.
Notes
Use a mix of sweet and tart fruits for balanced flavor.Ensure cream cheese is fully softened for smooth texture.Pat juicy fruits dry to prevent watery salad.Make-ahead: prepare cream mixture ahead and fold in fruits before serving.Flavor variations: tropical (mango, papaya, coconut), berry-rich, chocolate (sugar-free chips), nutty (pecans, almonds, walnuts), citrus (orange or mandarin segments).Store in airtight container up to 2 days; freezing not recommended.