Made a batch of this yesterday. Very easy and very good. Can't do it often, spinach is high in oxalates (bad for kidney stones).
1 package frozen tortellini
1 small bag fresh spinach
2 cans Italian-seasoned diced tomatoes
4 cups vegetable broth
1 8 oz. cream cheese
Cut cream cheese into smaller cubes. Place all ingredients in crock pot. Cook on low for 5 to 6 hours.
I used refrigerated (three-cheese) tortellini. Chicken-, sausage-, or beef-stuffed tortellini would also be good. My dad stopped by while it was in progress, took a look and asked "Where's the meat?"

I found only what appeared to be a large bag of spinach, so used between 1/2 and 2/3 of it.

