Step 1

1. In a deep pan, heat some cooking oil over medium heat and sauté the onion until transparent, being careful not to color the onion, about 5 minutes. Add the garlic and cook for another 2 or 3 minutes. 2. Add the green and yellow peppers and cook for 3 minutes until they are partially tender. Turn the heat to medium-high and add the beef. Stir well and cook until all the liquid has evaporated and the beef begins to change color. 3. 3. Reduce the heat to medium and add the beans, cilantro, cumin, chili, tomato paste, vinegar, salt, pepper and water. Stir well to blend in and let it simmer gently. 4. Turn the heat to medium-low and simmer uncovered for about 1 to 1.5 hours, scraping and stirring at regular intervals to prevent the bottom from burning. 5. Serve in a bowl and garnish with sour cream, green onion slices, and cheddar cheese.