Great that you've started OMS. And isn't it nice to enjoy things like pasta and sorbet?
The OMS diet is a "Whole Food" plant-based diet, as well as a low saturated fat diet. Therefore, it is best to use wholemeal pasta most of the time.
Most sorbets are made with refined sugar, so they are not whole foods. It is okay to occasionally indulge in such a treat, but best to most of the time choose recipes that don't contain refined ingredients. Honey, agave nectar, maple syrup are often used for sweetness, as well as dates and bananas. Look through the recipe section here and you will find many appropriate recipes.