Beans and plenty of vegetables make this healthy stew high in fiber, which can help keep you feeling satisfied.
In a large Dutch oven or other heavy pot, heat oil over medium. Add carrots, celery, and onion; season with salt and pepper. Cook, stirring occasionally, until carrots soften, about 5 minutes.
Add tomato paste and cook, stirring, 30 seconds. Add tomatoes (reserving juice) and cook, breaking them up with a wooden spoon, until lightly browned, about 4 minutes. Add tomato juice, kale, beans, thyme, and 2 cups water; bring to a boil. Reduce to a rapid simmer and cook until slightly reduced, 15 minutes. Divide soup among four bowls and serve. (To store, let cool completely, then refrigerate, in airtight containers, up to 1 week.)