In a pot, heat some oil on medium high heat
Add in the garlic and saute for a minute until fragrant
Stir in the onions and let them saute
Add in the chopped celery, carrots, and potatoes to saute until everything is slightly browned
Mix in the spices to coat the vegetables
Add in the tomato can, broth, and barley. Let it simmer on medium low for at least 30 minutes until everything is tender. The longer it sits, the more flavour you will get!
Cover it and let it simmer on low for 10 more minutes to let the barley cook through completely.
The barley will soak up a lot of liquid so definitely add more broth if you want to thin out the soup.
Remove from the heat and stir in the kale. Finish with a squeeze of lemon to taste.
Enjoy hot as is or with your favourite fresh bread dipped in!