As Nick said, stuff like pepperoni and sausage are okay but count the carbs. Don't eat too much of that stuff though. It's very, very processed and has been known to slow down weight loss in certain people. For snacks I get spicy pork rinds. They're surprisingly good.

Salad dressings... I've found that caesar and bleu cheese dressings stick to around 1 carb per 2 tablespoons and taste amazingly good.