I have a very simple crockpot recipe, but it's so good. 1 1/2 cups lentils, 4 cups water or broth, 3-4 sliced carrots, 1 chopped onion, 3 cloves minced garlic, 1/2 tsp salt, 1/4 tsp pepper. You're supposed to cook it for 8 hours on low or 4 hours on high, but it always takes less time than that.