olio (n.)

savory medley dish of Iberian origin, 1640s, from Spanish olla, Portuguese olha, both from Vulgar Latin *olla "pot, jar." With the common mistake of -o for -a in English words from Spanish. The sense was transferred from the pot to what went into it. Extended sense of "any mixture or medley, a collection of various pieces" is from 1640s in English.