Place pecans and oats in the bowl of a food processor or high-powered blender. Pulse until a coarse, cornmeal-like texture. Add all remaining crust ingredients and pulse again until combined.
Divide crust into four small serving dishes (ramekins, 4oz jars or small cups, etc) and press down to form a crust. Each dish should have about 2 tightly packed Tablespoons of crust.
Drain your soaked cashews, then add them to the bowl of your food processor or blender (no need to clean in-between making the crust and filling). Add all remaining filling ingredients and blend on high until smooth.
Pour filling on top of prepared crust; each dish should have about 1/3 cup of filling.
Make the caramel by stirring together all caramel ingredients in a small bowl. Divide evenly over top of the cheesecake layer.
Store cheesecakes in the fridge for at least 1 hour to set, or make up to 4 days in advance of serving. These can be eaten immediately, but will have more of a pudding texture versus a cheesecake texture.