We are not really vegetarian right now (though I think we may go back to it!), but I will say that I like my crockpot for cooking beans, especially in the summer when 3 hours of cooking dried chickpeas makes the kitchen unbearable! And then it is ideal for bean dishes, soups, stews, etc. Since I like to save money by buying and cooking dried beans rather than getting canned I think it is wonderful just for that purpose! We do eat a lot of beans!

Also, lots of vegetarian crockpot dishes that are not bean-based can be relatively quick cooking (2-3 hrs. as opposed to all day). That's fine for me b/c I'm here anyway, but if you were gone all day it might be harder.

The 2 cookbooks I like, which are not vegetarian cookbooks, are Not Your Mother's Slow Cooker Cookbook and Healthy Crockery Cookery, the latter of which has one of my favorite crockpot recipes for quasi-Indian chickpeas (they even please my DH, who is often a real purist when it comes to ethnic foods). I tend to flee from recipes that call for canned things (with some exceptions) and these don't have as much cream of mushroom soup or evaporated milk as many other cookbooks. They do have good vegetarian/bean sections, and I like to look at all the recipes just to get ideas.

I've seen in one of these some recipes for homemade granola, which I really want to try! And poached eggs too! (not an all day thing, but an easier way to make them)

I also love the crockpot for cooking a ton of food and then freezing it.

Oh, and as for green veggies that would easily go limp, I've noticed that some recipes have you toss them in for the last 1/2 hour.

I have a Rival 6.5 qt.(chrome exterior) that I got from Amazon during a post-fire spending spree. Made sense to get a crockpot when we had no stove! I like it but it is a bit large for someone who doesn't make roasts (as I don't), and it is hot to the touch (not really a concern for me).

Regarding the nutrition, I don't think it would be a big loss, presuming that you weren't draining whatever liquid/moisture was part of the recipe.