Breakdown of Мясо мы решили замариновать вечером, чтобы утром быстро сделать шашлык.
Questions & Answers about Мясо мы решили замариновать вечером, чтобы утром быстро сделать шашлык.
Russian word order is much more flexible than English word order. Starting with мясо puts the meat in focus as the topic of the sentence.
A more neutral order would be:
Мы решили замариновать мясо вечером, чтобы утром быстро сделать шашлык.
By saying Мясо мы решили..., the speaker is highlighting the meat specifically, as if answering a question like What did we decide to marinate in the evening?
So мясо is still the object, even though it comes first.
Yes, решили already shows first person plural, so мы is not grammatically necessary.
Russian often omits subject pronouns when they are clear from the verb ending. But pronouns can be added for emphasis, contrast, or clarity.
Here, мы helps balance the fronted object:
Мясо мы решили...
This can sound a bit like:
As for the meat, we decided...
So мы is there for emphasis and natural flow, not because the sentence would be unclear without it.