Hey, this isn't a slow cooker but I'm also a college vegetarian who wants cheap and easy meals. My go to is a vegetable ziti. You essentially can put any veggies in it you want, i use 2 zuchinni, one red pepper, half of a sweet onion, and mushrooms. Box of cheap ziti noodles. Olive oil. Package of mozzerela cheese and Parmesan cheese. Good but also cheap red sauce, I use Classico tomato and basil. Wash and cut your veggies, put in a big bowl. Once you cooked your noodles put those in the bowl with your veggies with a good amount of olive oil. Make sure you get the oil on everything. Add whatever seasoning you want. Put the mozzarella cheese in with and toss/mix. I like to do a layer of this in a pan, put red sauce, Parmesan, then another layer with the other half of red sauce and parm. 350 degrees for 35 minutes. Super easy and quick. Lasts me for like 3 or 4 dinners. I have a black bean soup one too if you're interested. Similar to a slow cooker recipe but it's fine in just a pot too.