Tanin-don or tanin-donburi is a dish in which beef or pork that is boiled with onions in a stock mixed with soy sauce, mirin and sugar, stiffened with eggs, and then placed on donburi meshi (a bowl of boiled rice).
他人丼（たにんどん、-どんぶり）とは、牛肉もしくは豚肉を、玉ねぎなどと割り下で煮て卵でとじ、丼飯の上に乗せた料理である。