vegetarian pasta + bean soup

we actually had everything on hand and it's made in the slow cooker too!

slow cooker vegetarian pasta + bean soup
makes 6 servings

2 tbsp olive oil
1 large onion, chopped
1 cup sliced celery
1/2 cup chopped carrots
1 tbsp minced garlic 
1 tsp italian seasoning
1/2 tsp ground fennel
12 tsp red pepper flakes (optional)
2 cans red or garbanzo beans, rinsed and drained
3 cans broth
1 14 oz. can diced tomatoes
salt and pepper, to taste
several pieces Parmesan rind (optional, but adds wonderful flavor)
1/2 cup orzo pasta
2 tbsp balsamic vinegar
freshly grated parmesan cheese
chopped parsley

Heat olive oil in a pan and saute the onions until they start to soften, about 4 minutes. Add the celery and carrots and cook 3-4 mins more, then add the garlic, italian herbs, fennel and red pepper and cook about a minute more. Transfer to the slow cooker.

While vegetables cook, put the beans in a colander and rinse with cold water until no more foam appears. When vegetables are done, add the drained beans, broth, tomatoes, salt and pepper to the slow cooker (along with the Parmesan rinds if using) and cook on high 3-4 hours or on low for 6-7 hours.

Add the orzo and cook for about 40 mins more. Remove rinds and stir in balsamic vinegar. Serve soup hot with fresh grated Parmesan and chopped parsley on top.