Rinse your lentils and place them in a slow cooker crock.
Add the cut sweet potatoes and carrots.
Add the celery and onions.
Add either minced garlic or pressed garlic to the crock.
Add the diced tomatoes and broth.
And finally, add the spices.
Give it a good stir to combine everything, then cook on low for 6-8 hours.
Once cooked, give everything another stir. If you need extra liquid at this point, feel free to add more broth to get a consistency you like. Don't forget to remove the bay leaves!
Season with salt and pepper to taste and serve.
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Notes
Please note that the nutrition data given here is a ballpark figure. Exact data is not possible.