Broccoli and rice casserole with processed cheese became a staple of American church and community cooking in the 1960s and 70s ÃÂÃÂÃÂâÃÂÃÂÃÂÃÂÃÂÃÂÃÂàpractical, filling, and easy to scale for a crowd. Its presence in nearly every NE Ohio church cookbook of that era reflects how thoroughly it had been adopted into the community's food culture, far from any corporate test kitchen.