In a soup pot heat up the oil, add onion and garlic, cook until the onion is tender and clear.
Add beans and the vegetable stock, bring to a boil then lower the heat and cook on medium until the beans soften, this may take a few hours, beans tend to cook at different rates, so just keep an eye on them.
Add the kale and beet leaves and cook for 10 minutes or until tender.
Add the Ro-tel, salt and pepper and cook just until heated through.
This is a delicious and hearty meal perfect for the winter.
You can also cook the beans in a crockpot adding the greens and tomatoes at the end.