上周日你和弟弟去看望你们的姑姑，姑姑给你们做了可口的牛肉三明治，你觉得姑姑做的三明治特别好吃。午饭后，你请姑姑教你做牛肉三明治。请你描述一下上周发生的事情，并根据下面的配料单描述姑姑做牛肉三明治的过程。

Last Sunday I went to see my aunt with my brother。 My aunt made some beef sandwiches for us。 They were very delicious。 After lunch， I asked my aunt to teach me how to make a beef sandwich。

First， she put a teaspoon of butter on a slice of bread。 After that， she cut up an onion and a tomato。 She added them to the bread。 Then she put some lettuce and four slices of beef on the bread。 Next she put two teaspoons of relish on the beef。 Finally， she put another slice of bread on the top。