Well, for many of the higher carb foods there are excellent alternatives, and you can swap many foods e.g. pasta for courgette, tacos for lettuce etc.
If you may be looking for a low carb (alternative) version of 'rice pudding' then look no further. Anne Aobadia at Diet Doctor site has come up with this super 'Creamy Cottage Cheese Pudding' … 'this is a low-carb version of the classic rice pudding - and you can serve (and enjoy) it all year round'
1 teaspoon vanilla extract
1 teaspoon ground cinnamon
Just look at the difference in carb count:
4g per serving in the low carb version
If you would like to read more about eating lower carb foods, and the LCHF lifestyle, why not see our post 'Introduction to low-carb for beginners' here
All the best Jan