I'm on a business trip in Chicago, my wife asks me what I had for lunch, I reply:

[B45]

I'm on a business trip in Chicago, my wife asks me what I had for lunch, I reply:

What we had last time when we were in Chi-town.

VS

What we had last time in Chi-town.

Are both okay?

 

[Tdol]

What we had last time we were in Chi-town.

 

[B45]

What we had last time we were in Chi-town.

Both my examples are wrong?

 

[Tdol]

The second is OK.