So I was perusing the internet for recipes and came across this one: http://www.southernplate.com/2010/08/slow-cooker-chicken-and-wild-rice-and-your-cheering-section.html
I decided to experiment a little bit, so I put 3 pieces of frozen chicken breasts in the crockpot, cream of mushroom soup, and poured a packet of dry onion soup mix on top. Cooked it on low for 6 hours, then shredded the chicken and returned it to the crockpot. I cooked a box of Rice-a-roni Long Grain and Wild Rice, and dumped it in the crockpot and stirred it all together, then added some frozen peas in for a little veggie.
It was seriously yummy, and made really great leftovers as well!