Preheat oven to 325°F (165°C) and line a mini muffin pan with paper liners.
In a large mixing bowl, beat together cream cheese, peanut butter, and erythritol until smooth and creamy.
Add eggs one at a time, mixing on low speed, then blend in vanilla extract until fully incorporated.
Spoon mixture evenly into muffin cups, filling about 3/4 full.
Bake for 10–12 minutes, until centers are just set. Cool completely, then refrigerate for at least 30 minutes.
For topping, melt chocolate with coconut oil until smooth. Drizzle over chilled cheesecake bites before serving.
Notes
Store bites in the refrigerator for up to 5 days or freeze for longer storage. For a nut-free version, use almond butter or sunflower seed butter instead of peanut butter.