Yes hummus is quite high in carbs so limit the amount you eat. Also surprisingly halloumi is much higher in carbs than normal cheese, so you might be better selecting a nice mature cheddar or a good blue stilton if you like that sort of thing..... I have developed a taste for blue cheese since I changed my diet and cut out all the sweet stuff.
Lidl do large packs of unsalted nuts (mixed or individual types like brazils or pecans.... brazils seem to be the lowest carb and I find them very satisfying.... for not a lot of money. I had some of
@Drummer 's recipe cauliflower cheese last night with some high meat content pork, lemon and fennel sausages, with cabbage and leeks done in cream cheese instead of white sauce too.... it was yum! My brother in law makes me a gorgeous chunky ratatouille called "Posh Veg" from Mary Berry's recipe book which is baked with gruyere cheese on top and that is heavenly just on it's own or as an accompaniment to steak or chicken.
The Nut Bars in Aldi as mentioned by someone else are very nice for an occasional sweet treat but if you don't crave sweet things then you are just as well having a few salted peanuts or a carrot... it is really all about keeping track of the amount of carbs you are consuming in a day setting yourself a rough limit and adjusting that where necessary to reduce your HbA1c.
Because you are not providing your body with easily digested energy in the form of carbs, it will burn off some of your body fat to compensate. Once your BMI comes into the normal range then you will need to increase your fat intake to provide energy and stabilise your weight which is when a low carb diet becomes long term sustainable/enjoyable but whilst you are wanting to lose weight, it helps to keep fat intake moderate to low. Often you will find that low fat products are higher in carbs, and not only because they have added sugar to make them taste good but because the fat that has been removed has no carbs in it, so what is left has a higher carb content.... in this respect, full fat milk has less carbs than skimmed and creamy natural Greek yoghurt has less carbs than Fat Free natural Greek yoghurt.
Olives make a good snack if you like them or can develop a taste for them, or mushrooms/cucumber/celery sticks with a sour cream and chive or salsa dip... look for healthy fresh options rather than the jar convenience stuff... or cheese or nuts or perhaps you could try some of that Jerky dried beef snack if you want something savoury to chew on. I also occasionally treat myself to a packet of pork scratchings.