2.

Meanwhile, heat olive oil in a large saucepan over high heat until shimmering. Add onion and green pepper and cook, stirring often, until soft, about 2 minutes. Add garlic, chili powder, red pepper flakes, cumin, and oregano. Stir continuously until very fragrant, 30 seconds to 1 minute. Add beef and cook until no longer pink, stirring frequently with a wooden spoon to break up the meat, about 7 minutes. Add tomatoes and juice and the hot sauce, stir well, and bring to a boil. Reduce heat to maintain a steady simmer and cook until thickened, about 30 minutes. Season with salt and pepper.