In a 2-quart saucepan heat the whipping cream just to a boil. Remove from the heat; stir in the Pepper Jack cheese, cumin, and chili powder until the cheese melts
Gradually add the sour cream to the mixture. Stir in the chicken and set aside.
In a medium nonstick skillet combine 2 tablespoons of vegetable oil, the red bell pepper, onion, and garlic. Cook and stir over medium heat for 4 to 5 minutes or until vegetables are softened.
Add the diced tomatoes and chilies, and lime juice; mix well. Cook for 1 additional minute. Remove from the heat and set aside.
In the bottom of a greased 13 x 9-inch baking pan place 1 cup of the tomato sauce.
Begin layers: layer five torn corn tortillas on the tomato sauce, then layer ½ the chicken mixture, 1 cup green salsa, 1 cup shredded Cheddar cheese, the remaining five torn corn tortillas, last ½ of chicken, remaining tomato sauce, then top with last ½ cup shredded Cheddar cheese. Cover and bake for 30 to 35 minutes or until heated through and the cheese is melted.