YOU SAID:
I just had ate a big cereal bowl
INTO JAPANESE
大きなお椀を食べたばかり
BACK INTO ENGLISH
I just ate a big bowl
INTO JAPANESE
大きなお椀を食べた
BACK INTO ENGLISH
I ate a big bowl
INTO JAPANESE
大きなお椀を食べました
BACK INTO ENGLISH
I ate a big bowl
That didn't even make that much sense in English.