The phrase "cooks one's goose" typically means to ruin one's chance of success or to cause them harm. However, some antonyms for this phrase include aiding or assisting someone, enhancing their opportunity to succeed or prosper, or even saving them from danger or harm. Other antonyms could include helping someone to prepare or cook their actual goose, or perhaps even presenting them with opportunities that will benefit rather than harm them. In essence, the antonyms for "cooks one's goose" all revolve around positive actions, rather than negative ones that result in someone's downfall.