Beef stew is always easy. Just throw in your stew meat, veggies, maybe some broth or bullion, barley (i love this), spices, set on low for eight hours or so.
I recommend trying a search at www.recipezaar.com
. I use these sites alot and you can read other peoples reviews and make changes accordingly.
Here's a couple that i make:http://www.recipezaar.com/Crock-Pot-Butternut-Chili-236131http://www.recipezaar.com/Crock-Pot-Stiffado-17181
(u can use a spash of reg vinegar instead of the red wine vinegar)
these are on my list to try:http://www.recipezaar.com/Olive-Garden-Pasta-E-Fagioli-Soup-in-a-Crock-Pot-Copycat-31717http://www.recipezaar.com/Jans-Cream-of-Asparagus-Soup-for-the-Crock-Pot-73697
Dried beans also cook well in the crockpot. Just throw em in there with some broth, seasoning, meat of choice, cook for like 8 hours and voila. I never presoak when i cook them in the crockpot.
Good luck and happy cooking