Yes, I have found the slow cooker excellent for vegie meals so far!

In the last week I have made pumpkin soup and a spinach/split pea dhal in the slow cooker and I was very happy with both. I have only been using the slow cooker for a few months, but really found that I needed to get a cookbook specifically for it, as it's quite different to using the oven for slow cooking. After looking at heaps of books I ended up getting the AWW Slow Cooking book, which has so far given good results.

Using stock is great and plenty of herbs! Some recipes are tomato based (tinned toms) too.
I hope this helps

LMM