Preparation : 1. Heat oil in a quart saucepan. Brown ox tails on all sides. 2. Discard oil. A 1/2 package of seasoning and enough water just to cover ox tail. 3. Cook/simmer ox tail until almost tender (2-2 1/2 hours). 4. Add 1/2 pound frozen mixed vegetables. Simmer for another 1/2 to 1 hour.