Combine tomatoes (with juices), black beans (drained and rinsed), salsa verde and about 6 oz. of frozen corn (or more if you like) in a large pot or slow cooker.
Add several dashes of chili powder (or chipotle powder if you like it HOT, but remember that a little goes a long way!). Taste, adding more spices to taste.
Heat over low heat until thoroughly warm.
Add lime juice to taste, if desired, just before serving.