Step 1

Heat the oil in a large saucepan over medium heat. Add the garlic and scallions and cook, stirring, for 1 minute. Add the beef and cook, breaking it up with a spoon, until starting to brown, 5 to 6 minutes; stir in the chili and cayenne and cook for 1 minute.

Step 2

Add the tomatoes, beans, pepper, carrots, sugar, 1 cup water, and a pinch of salt and bring the mixture to a boil. Reduce heat and simmer, partially covered, stirring occasionally, until the pepper is tender, 12 to 15 minutes. Serve topped with rice, sour cream, and cilantro, if desired.