Pre-heat oven to 350’F
In a heavy bottom Dutch oven, stir together chiles, ketchup, water, garlic, oregano, salt & pepper
Add beef to pot, turn and coat all sides with spice mixture in pot
Cover pot and bring to boil over medium heat
After it comes to a boil, remove from heat and transfer to oven
Bake covered 2 ½ hours until meat is fork tender
Remove from oven
Skim off fat if any is in the pot
Serve hot with corn tortillas, sour cream, lime wedges & chile verde sauce