Here's one of my new favorite's. Paula Deen's Taco Soup. You can also make in on the stovetop and it doesn't take as long. I halve the recipe and add a can of chicken broth.
Taco Soup Recipe : Paula Deen : Food Network
Here is another favorite and it's very easy and quick to prepare:
Joanne’s Bean and Pasta Soup
Saute:
2 slices bacon - chopped
3-4 mild italian sausage-removed from casing and crumbled
3 cloves garlic - diced
1 medium onion - diced
Then add:
1 14-15 oz can beef broth
1 15oz can Hunt’s chili beans - undrained
1 15oz can small white beans - undrained
1 15oz can whole tomatoes - diced
1 can water
1 tsp salt
1 tsp pepper
1 T. dried parsley
1 tsp thyme or to taste
15 minutes before serving add:
1/2 cup small shell pasta
Serve with shredded parmesan cheese