Creating Bite-Sized Apple Crisp Cheesecakes is a simple process. Follow these steps to ensure success:

1. Preheat the Oven: Preheat your oven to 325°F (160°C) and line a muffin tin with cupcake liners.
2. Prepare the Apple Filling: In a medium bowl, combine the diced apples, brown sugar, cinnamon, and lemon juice. Mix well and set aside.
3. Make the Cheesecake Filling: In a large mixing bowl, beat the softened cream cheese and granulated sugar until smooth. Add the sour cream, eggs, and vanilla extract. Mix until fully combined and creamy.
4. Prepare the Crisp Topping: In another bowl, combine rolled oats, flour, brown sugar, cinnamon, and melted butter. Mix until crumbly.
5. Assemble the Cheesecakes: Spoon a small amount of the cheesecake filling into the bottom of each cupcake liner, filling about ⅓ full. Add a spoonful of the apple filling on top, then a layer of the cheesecake filling until the liners are about ¾ full.
6. Add the Crisp Topping: Sprinkle the crisp topping generously over each cheesecake.
7. Bake: Place the muffin tin in the preheated oven and bake for 30-35 minutes, or until the cheesecakes are set and the tops are golden.
8. Cool: Remove the muffin tin from the oven and allow the cheesecakes to cool in the tin for about 15 minutes. Then transfer them to a wire rack to cool completely.
9. Chill: For best results, refrigerate the cheesecakes for at least an hour before serving. This helps them set further and enhances the flavors.
10. Serve: Remove the cheesecakes from the liners and serve with optional toppings if desired.

These steps will guide you in creating these incredible bite-sized treats effortlessly.