I mostly just keep stews fairly meat-heavy. Instead of a pound of meat and a few pounds of vegetables, I might have two pounds of meat and a pound of vegetables. You'd need a lot of onion and carrot to put you over the limit of most LC plans. Even a small amount of potato can fit sometimes. Green beans are always good in stews, and quite low-carb, if you don't consider them legumes to be avoided. Thicken with cream or reduction, so you don't add many carbs with a thickener.
If you're still having trouble making it add up, another option is to have your other meals that day be VLC, like meat and eggs only. It's usually best to spread your carbs out over all your meals to reduce their impact, but I think it's okay to bunch them up now and then.