In a 6 quart slow cooker, place the ham bone, and split peas in the slow cooker. Then add the sliced carrots, parsnips, white potatoes, onion, celery, and garlic on top. Add bay leaf, season salt, and black pepper followed by 6 cups of water. Stir until everything is incorporated.
1 Ham Bone, 1 16 oz bag of Dried Green Split Peas, 3 carrots, 2 parsnips, 2 white potatoes, ½ medium onion, 3 ribs celery, 2 cloves garlic, 1 bay leaf, 1 tablespoon season salt, ½ teaspoon black pepper, 6 cups water