Cut roast into large cubed pieces and sprinkle the dry mixture of garlic salt, cumin, and oregano over all pieces of meat. Cut onion in eighths and arrange on top of cubed pork and place in oven at 350 degrees for 45 minutes in uncovered baking dish 9x11(or similar).
In a medium bowl mix the enchilada sauce and Verde salsa together and pour over meat and onions and cook for another 45 minutes uncovered until meat is tender.
picture of can of Herdez Salsa Verde
Garnish with chopped cilantro and serve with Spanish rice and refried beans.