Was a diabetic during my pregnancies. Wrapped my sandwiches in lettuce. Easy and fun way to avoid carbs. Also sliced zucchini for lasagna noodles.
I’ve tried that lettuce sandwich, but that just didn’t cut it. So now I just have salads - deconstructed sandwich-LOL.
For example a BLT Sandwich. I put the mayo or miracle whip in a dish chop up a tomato and stir it all up while the bacon is cooking. Then I put some lettuce on the plate and top it with the tomato and bacon.
I toast a slice of the low carb bread and butter it and slice into 20 pieces and throw it on top. That leaves me about 10 carbs for berries for dessert or half a cup of whole milk mixed with water - tastes better than the skim milk I was drinking for the last 29 years. LOL