Lentil, Sweet Potato, & Romaine Soup

Food photography - not my forte!

What to do with all that romaine lettuce?  Apparently you can use it just like any other green. So, soup using what's on hand ...

• 1 can Campbell's French onion soup + 1 can water (not sure why it was in the pantry, but since it was there it seemed good for a quick base)
• 1/2 cup green lentils
• 1 small sweet potato, diced small
• Outer leaves and towards-the-core parts of two heads romaine, chopped
• 1/2 can tomato sauce
• 1/2 c or so of leftover sauteed Brussels sprouts with red onion
• Some previously chopped celery and shredded carrots 

Cooked in crockpot on high for about 4 hours.  Probably would have been better to add the lettuce in later than at the first ... but I wanted a put-it-on-and-go-to-bed dish.  Next time, cook it on low so it gets done closer to breakfast! 

Made about 6 cups.