This Slow Cooker Sausage Lentil and Arugula Soup is easy. BEYOND easy. As in, if you can brown sausage and then literally toss every other ingredient in your slow cooker, you can consider dinner done.
In a six quart slow cooker, saute sausage until brown and in crumbles.
Add all other ingredients, except arugula and stir gently to combine.
Cook on HIGH three hours or LOW six hours.
Before serving, stir arugula into soup until wilted.
Notes
If your slow cooker does not have the ability to saute, you'll want to complete the first step of the recipe in a saucepan on your stovetop and then add it to your slow cooker.