Southwestern Three-Bean & Barley Soup
1 large onion, diced
1 large stalk celery, diced
1 large carrot, diced
3-4 cloves garlic, minced
4 cups broth
3/4 cup pearl barley
1 can black beans, drained and rinsed
1 can great northern beans, drained and rinsed
1 can kidney beans, drained and rinsed
3 tbsp chili powder
1 tbsp ground cumin
1 tsp dried oregano
2 tbsp soy sauce
Combine ingredients in slow cooker. Cook on high 4-6 hours.
Based on this recipe from Eating Well.