@Flora123 I’ve used this recipe a lot and have always used almond flour. The garlic bread is delicious!
. If going to try again with coconut flour as a comparison. My BG was high after it though 
@Flora123 did you use mozzarella? I use Morrison’s preheated mozzarella which has a couple of carbs in and the garlic and herbs or chives Philadelphia cream cheese. I think as you say the ideal is to test different ingredients until you find the right one for the family