If your family is reluctant to eat quiche, just tell them this is a ham and cheese pie. They'll never know the difference and the flavor will win their affections. Also, you can add a bit more ham if you think that will please your family and win them over.
Be sure you're not using that "sprinkle" Parmesan cheese. This calls for real fresh grated Parmesan cheese. You can buy it already grated in the dairy case.