Brown the beef and pork cubes in the oil in a Dutch oven or stockpot. Add onion and cook until lightly browned, about 5 to 8 minutes. Add herbs and seasonings, tomatoes, water or broth, and bell pepper. Cover and simmer for 2 hours. Add potatoes and cook until tender, about 15 minutes longer.
If desired, thicken with a paste made with 1 tablespoon of flour mixed with 2 tablespoons of water, then cook until thickened.
Calories per serving: 402
Fat per serving: 8.8g