Package sizing seems to have shrunk since my grandmother clipped this recipe. Diced green chilies only come in 4 oz cans, and tortillas only come in packs of 10 or larger. To avoid having to buy extra just use what you find. If there's any filling leftover at the end then you can sprinkle it over the top before adding cheese. My mother-in-law does this with her authentic enchiladas all the time.