Roast Pork Loin Southwest Style

Heat oil in a large skillet over medium heat. Add tomatoes, onion, cilantro, tomatillos, garlic, jalapeno pepper and chilies; cook about 2 minutes or until onion is tender, stirring frequently. Add oregano, cumin, red pepper and coriander; mix well. Refrigerate mixture until thoroughly chilled. Heat oven to 325°F (160°C). Spray shallow baking pan with nonstick cooking spray. Using sharp knife, cut 8 to 10 slits about 1 inch long and 1 inch deep in top and sides of pork roast. Press heaping teaspoonful of cold vegetable mixture into each slit; spread remaining mixture over top and sides of roast. Place in prepared pan. Roast for about 1 1/2 hours, or until meat thermometer registers 155°F (approximately 65°C). Let stand 10 minutes before slicing.