Ingredients:

* 3 cans (14 – 15 oz each) black beans
* 1 can (14.5 oz) diced tomatoes
* 1 diced chipotle chili pepper (canned in adobo sauce) or a pinch of ground chipotle chile powder
* 1 – 2 tbsp olive oil
* 1 lb very lean ground beef (less than 10% fat)
* 1 medium red onion, very finely diced
* 1 tbsp regular chili powder
* 1 1/2 tbsp ancho chile powder
* Pinch ground chipotle chile powder
* 2 1/2 tsp ground cumin
* 2 cups beef stock or 1 (15 oz) can beef broth
* 2 tbsp tomato paste
* Juice of 1/2 lime
* 1/4 cup cilantro, chopped
* Kosher salt and fresh ground black pepper, to taste