Base

1 cup mixed roasted nuts (I bought them roasted from the supermarket)
30 grms butter, melted

If nuts are raw then toast otherwise crumb nuts and mix in butter.  
Put even amounts of crumb mix into muffin tins and bake for 10 mins @ 180 degrees.

Filling

300grms Philadelphia cream cheese
2 tbsp stevia
1 whole egg
¼ cup lemon juice

Beat ingredients together until creamy and spoon onto crumb base. Bake for 15 mins at 180.