When I came here last time, I decided that I would eat here.
ご質問ありがとうございます。
"When I came here last time, I decided that I would eat here."＝「前回ここに来た時、私はここで食べると決めた。」
① 「おいしい」と「健康的」を両立したこだわりランチ。= "A lunch menu that values both the taste and one's health."
②限定15食のこだわりランチ= "Valued lunch that offers 15 different limited menus."
③最初から最後までおいしい= "It tastes delicious from beginning to end."
④小鉢に少しずつ盛り付けられている＝"You can take small portions of them in small bowls."
ご参考までに。
Last time I came here, I decided that this would be the place where I would be coming to eat.
ご質問ありがとうございます。
「[前回](https://eikaiwa.dmm.com/uknow/questions/43899/)きたとき、次はここで食べよう決めてた」は英語で「Last time I came here, I decided that this would be the place where I would be coming to eat.」と言えます。
ご参考になれば幸いです。
アメリカ合衆国 
