The Collaborative International Dictionary of English v.0.48:
Olio \O"li*o\ ([=o]"l[i^]*[-o] or [=o]l"y[-o]), n. [Sp. olla a
round earthen pot, a dish of boiled or stewed meat, fr. L.
olla a pot, dish. Cf. Olla, Olla-podrida.]
1. A dish of stewed meat of different kinds. [Obs.]
Besides a good olio, the dishes were trifling.
2. A mixture; a medley. --Dryden.
3. (Mus.) A collection of miscellaneous pieces.
Moby Thesaurus II by Grady Ward, 1.0:
47 Moby Thesaurus words for "olio":
Irish stew, all sorts, assemblage, assortment, bouillabaisse, brew,
broad spectrum, chowder, conglomeration, curry, etuvee, fricassee,
gallimaufry, goulash, hash, hodgepodge, hotchpot, hotchpotch,
jumble, magpie, mash, meat stew, medley, melange, mess,
mingle-mangle, miscellany, mishmash, mix, mixed bag, odds and ends,
olla, olla podrida, omnium-gatherum, oyster stew, paella,
pasticcio, pastiche, patchwork, potpourri, ragout, salad,
salmagundi, sauce, scramble, stew, what you will