Ten years ago, Julia Sweeney dropped out of Hollywood. After four seasons on “Saturday Night Live,” two acclaimed stage monologues, “God Said ‘Ha!’” and “Letting Go of God,” appearances on television and in movies, she and her daughter, Mulan, left Southern California and moved to Willmette, a suburb of Chicago, where her husband, a biophysicist, owns a business. The idea, she says in her latest one-woman show, “Older and Wider,” is that he would be the breadwinner. She could be the bread eater.