
In a large Dutch oven or heavy-bottomed pot, heat oil over medium heat. Once hot, add the carrots, celery, and onion, 1 teaspoon salt, and ½ teaspoon black pepper and cook for 5-7 minutes until the vegetables are softened and the onion is translucent.
Add the garlic, stirring until fragrant, about 30 seconds. Add the black beans, vegetable broth, cumin, and remaining salt and pepper. Stir well and bring the mixture to a boil.
Once boiling, reduce the heat to low and let it simmer for 25-30 minutes to allow the flavors to meld. Use a potato masher to mash some of the beans directly in the pot while keeping some whole.
Serve warm with fresh lime juice and Greek yogurt.