YOU SAID:

I had a sandwich for lunch today

INTO JAPANESE

今日のお昼にサンドイッチを食べた

BACK INTO ENGLISH

Ate a sandwich for lunch today

INTO JAPANESE

今日は昼食にサンドイッチを食べた

BACK INTO ENGLISH

Today I ate a sandwich lunch

INTO JAPANESE

今日はサンドイッチのランチを食べました

BACK INTO ENGLISH

Today I ate a sandwich lunch