Mmmm... I love my dutch oven. Easiest thing is BBQ (pulled pork). Throw in a 4-5 lb. pork shoulder and some Texas Pete's, put it in a 200* oven while you're at work. By the time you get home, dinner is ready.
Aslo, I have a recipe for Ropa Vieja. Same as the other, 200* oven for 8-10 hours:
4-5 lb. beef round steak
1 10 oz. can of tomato paste
1 cup julienned onion
1/2 cup julienned green peppers
1/2 cup julienned red peppers
2 or more canned chipotle peppers in adobo sauce, chopped
1 tsp. dried oregano
1/4 tsp. cumin
That should work in a slow cooker too, no? That's usually my favorite countertop device for when I want a meal ready when I get home. Just set it on low, set the timer and go to work.