I've done a few things to slightly reduce my cab intake since being diagnosed.
Add an extra low carb veg (broccoli & caluiflower are my current favourites) to meals and serve less potato.
The same with sandwiches, I always make sure to add some salad and less sandwich. A lettuce leaf makes a nice alternative to a wrap.
Greek yoghurt and berries (I keep a bag of frozen ones in stock) is a nice desert.
I've started taking a lot more notice of the fruit I buy, both in terms of type and size. A large apple can be twice the size but I still eat the whole apple. Eating a small apple doesn't make me feel I've missed anything.
Snack wise I like celery with a bit of peanut butter spread on it, my kids like our homemade version of dairylea dunkers a small pot of cheese spread and carrot sticks.