Aren't novels fiction by definition?
In re: having a friend over for dinner, I'll recommend the story anthology Strangeness, which includes The Last Supper by Russell FitzGerald, about how to prepare a person to be haute cuisine nonpareil! Not a novel, however.
Just finished Lucifer's Hammer and enjoyed the depiction of Southern California being swamped by tidal waves and never ending storms quite a bit. Technological happy ending made me snicker though.
What kind of novels are we listing? You could as well cue up some list, like Harold Bloom's.
Checked out Random House's
100 Best Novels. Their
Modern Library editorial board (Maya Angelou, Christopher Cerf, etc.) picked the usual Lit 101 heavyweights - Top 5 is Joyce x 2, Fitzgerald, Nabokov, Huxley. The readers' picks reflect more mundane choices - Ayn Rand x 2, Tolkein, Harper Lee, and - get this - are you ready? - Battlefield Earth by L. Ron Hubbard. Superlative tastes, Rat Brain!