
Here is a meaty, rich, lightly spiced mix with all the heartiness of my usual chili variations, but graced with an unusual, mineral flavor from the lamb and sweetness from the white beans.
Heat the oil in a soup pot over medium-high heat. Add the lamb and cook, breaking up with a fork, until well browned, 5 minutes. Season with 1/2 teaspoon each of salt and pepper. Transfer meat to a paper towel-lined plate.
Add the onion and poblano peppers. Cook until the vegetables are softened, 5 to 7 minutes. Finely chop 2 tablespoons of the cilantro stems and add to the pot. Stir in the garlic and jalapeño and cook 2 minutes. Add the chile powder, coriander and cumin, and cook 1 minute. Stir in the tomato paste and cook until it begins to turn brown.
Return the lamb to the pot. Stir in 4 cups water, the beans and 1/4 teaspoon salt. Simmer over medium-low heat for 45 minutes; add more water if the chili becomes too thick. Taste and adjust seasonings if necessary. Ladle into bowls, and top with a dollop of yogurt and a squeeze of lime. Garnish with chopped cilantro leaves.