This isn't a restaurant post, but I stumbled upon a vegan ranch dip mix and had to share it with other vegans looking for a decent ranch!
Lipton makes a vegan ranch powder that is in the Kosher section of the grocery store. I take a tub of Tofutti Sour Cream and mix in the packet of ranch. I found you only need about 1/2 a packet. You can adjust it to suit your taste, but I found that you don't need much of the ranch powder to make a flavorful dip.
Anyway, easy vegan ranch dip/dressing is not only a dream anymore! Yay!!!
P.S. Lipton makes several powdered soups that are vegan and can make great dips. The French Onion and even Beefy Onion are vegan. I believe most of the "Recipe Secrets" packets they have are vegan, but check the labels. Again, just dump it into a tub of Tofutti Sour Cream and you're on your way to easy party dips! No one will even notice they are vegan!