Lightly fry 1 doz. Corn tortillas in canola oil (Tortillas should still be soft and not crispy), and then cut them into 1 inch strips. Alternatively, you can preslice the corn tortillas and fry them crisper. Cut whole green chiles into ½ inch cubes or alternatively, use diced green chiles. Recipe seems to come out better with larger pieces of green chiles. Fry Sausage with Onion, add tomatoes puree, green chilies, diced jalapenos, cilantro and heavy cream. Simmer for 10 minutes. In a 2 quart casserole dish, place ½ of the sliced tortilla strips along bottom to cover. Add sauce and cheese then layer again with remaining tortilla strips, sauce and cheese. Bake at 350 degrees for ½ hour.