I love the crock pot, and my DH loves split pea soup. This is probably the best recipe for split pea soup that I have made. I think that we found it on "Just Crockpot Recipes". Of course, it's been modified just a bit for our family, but mostly the same.
2 cups split peas (rinsed and sorted)
6-7 cups chicken stock (or water and the appropriate number of Herb Ox bouillon cubes, like I do)
1 medium onion, chopped
3 medium potatoes, peeled and cubed (about 1/2 inch cubes)
3 carrots, I shred them or chop them tiny
1 large celery stalk, chopped
1 pound or so cooked ham, cut into 1/2 inch cubes
1 tablespoon rubbed sage
1 tablespoon dried thyme
1/2 cup brown rice, uncooked
Put everything into the crockpot, mix, and cook on low 6-8 hours. I usually make cornbread muffins to go with it. Just use the recipe on the side of the Aunt Jemima corn meal. Delicious and easy.