Place pork loin at the bottom of a crockpot. Add peppers and onions, seasoning, and salsa to the top. Cook over high heat for 4-6 hours or low for 6-8 hours. Timing will depend on the size of the pork loin.
Closer to dinner time, add oil and rice to a pan and let cook 1-2 minutes. Add in water and tomato sauce. You can also add any additional seasoning like garlic powder and black pepper. Bring to a boil and then reduce heat and cover. Let simmer for 30 minutes.
Microwave canned corn or sauté on the stove with additional seasonings.
Using 2 forks, shred the pork and mix well with the salsa and peppers/onions. Serve the pork in the tortillas and top with shredded cheese and sour cream!
