In a large pot, heat oil over high heat. Sear the beef rolls until brown on all sides.
Remove the beef then add the onions and garlic in the same pot. Sauté until fragrant and soft.
Add the chorizo, diced tomato and tomato paste. Sauté for two to three minutes.
Deglaze it with red wine. Let it simmer for two to three minutes or until the alcohol smell is gone.
Add the reserved marinade and the beef stock.
Bring to a boil and add the beef rolls. Turn the heat low and cover the pot with a lid.
Braise for two to three hours or until the beef is tender. Make sure to turn and stir the roll and braising liquid from time to time to avoid any bottom scorching.