。
She made all of us a wonderful feast.
Literal
She [topic-は] us all [to-に] wonderful feast [object-を] made for-us.
ご馳走 (gochisō, often written ごちそう) is a culturally rich word with no single English equivalent — it covers any specially-prepared, generous meal, often shared and given as hospitality. The term lives in everyday phrases like ごちそうさまでした ('thank you for the meal'), said after eating. The verb pair 作ってくれる ('made [it] for me/us') uses the benefactive ~てくれる to mark the speaker as the recipient of the kind action. 素敵 ('lovely, wonderful') is a warm, appreciative adjective often used by women but in contemporary use is fairly gender-neutral.