Vegan low carber here. It isn't easy, but hell damn it's worth it for the results.
I eat a LOT. And often.
Coffee with soy milk and sweetener.
Treat days I have one spoonful of cocoa, sweetener and lots of hot soy or almond milk.
Popadums with low carb dips (tomato sauces or guacamole)
Huge salads with seeds, oil, nuts,olives, avocado, vegan mayo.
Zero noodles with 'cheese' sauce obviously vegetarians can use 'real' cheese, and any fake meats you fancy.Chickpeas/pulses depending on your carb allowances.
Tomato sauces and zero noodles with loads of veggies and seeds.
Before low carb I avoided processed foods like the plague and cooked everything from scratch, was all about the healthy.But ATM and only teporarily I decided losing weight was important and this has worked. I relax it at weekends-sometimes overload on carbs , sometimes I don't crave carbs at all. It works though, lost 7lb in first week of doing it and have kept losing and gaining muscle definition after that, I do exercise though.
Good luck all.