Absolutely! The slow cooker is a great way to cook this hearty vegetable soup. Like usual, you’ll want to sautee the vegetables in a stock pot to draw out all the flavors and soften them properly. Then, add the veggies with the water, bouillon cubes, and salt to your slow cooker. It won’t take too long since the vegetables are partially cooked. Let the soup slow cook for about 2-3 hours and serve!