In a pan brown the ground beef and jalapenos (optional); Drain once done. Add taco seasoning and prepare according to package directions. Add cream cheese, cover and simmer until cheese is melted. Add 2 cups of Kraft four cheese Mexican. Add Olives (optional) Stir together and mix well. Set aside and cool completely.
While ground beef is cooking, cook the pasta shells according to package directions; drain. Set shells out individually on cutting board or baking sheet so that they don’t stick together
Pour salsa on bottom of a 9×13 baking dish. Stuff each shell with 1-2 tablespoons of the meat mixture. Place shells in 9×13 pan open side up. Evenly cover shells with taco sauce. Cover dish with foil and bake for 30 minutes
After 30 minutes, add remaining shredded cheese and bake for 10-15 more minutes with the foil removed. Top with green onions or olives if desired. Serve with sour cream and/or more salsa.