I like to soak my black beans in water overnight, and then put them in the crockpot on low with water and a cup of salsa for the day. They turn out so tender and have a slightly smoky flavor when done.
If you've never made homemade tortillas, you are missing out. They're only like four billion times better than what you buy in the store. I made 12, and there were only 3 left over after dinner. The boys always love them. You can find the recipe HERE.
For more ideas of recipes for kids, check out Muffin Tin Mom.