Preheat oven to 350 degrees.  Pour oil into a frying pan just bigger than the tortillas and heat over medium heat.  Using tongs, toast tortillas for about 5 seconds on each side.  Combine 1/2 C. salsa, 1 C. sour cream and cilantro.  To assemble, place 2 Tbs. pork, 2 Tbs. salsa and sour cream mixture, and 1 Tbs. cheese on each tortilla.  Roll them and place seam-side down in a buttered 9x13 inch pan.  Bake for 10 minutes, then pour remaining salsa and sour cream on top, along with corn and mixed greens.