Half of the food is store-bought and half is homemade.
Sometimes when we are cooking a meal for a gathering or we get together with friends or family, sometimes there is not enough time to make everything in a homemade style. We may need to buy some pre-made food as well.
If we mention about this, we can use some expressions such as:
1) I bought half of the food and prepared the rest.
2) Half of the food is store-bought and half is homemade.
友達や家族を集めて料理をするときには、全てを手作りする時間がないこともあります。出来合いの食べ物も買わないといけないかもしれません。
これについて言うなら、以下の表現が使えます。
1) I bought half of the food and prepared the rest.（食べ物は半分は買って半分は作りました）
2) Half of the food is store-bought and half is homemade.（食べ物は半分はお店で買ったもので、もう半分は手作りです）
When talking about food. When asked if you made all of the food and you want to say that you made half of it and I bought half of it, then you may try the above exampled sentence.
Half of it was handmade and the rest was store bought.
If you want to explain that you made half of the food and that you bought the other half, you can say:
"I made half and bought half."
"Half of it was handmade and the rest was store bought."
食事について「半分は作って半分は買った」と説明したいなら、次のように言えます。
"I made half and bought half."（半分は作って半分は買った）
"Half of it was handmade and the rest was store bought."（半分は手作りで半分は店で買ったものです）
I bought half the food and prepared the other half
When talking about making food we also say that we 'prepare' it , bought means you paid money and got something
'I made half and bought half' is a simply way of explaining you only made half of the food
「料理をつくる」の「つくる」には 'make' の他、'prepare' も使うことができます。
'I made half and bought half'（半分つくって半分買いました）は「料理は半分だけつくった」のシンプルな言い方です。
"The pie is half made and half bought!"
Meaning that I made the filling to go inside the pie but I did not make my own pastry, the outside of the pie, the pastry I bought at the store.
Half is 50% of something
Half - the filling
Half - the pastry
"The pie is half made and half bought!"（そのパイは半分は作って半分は買いました）
パイの中に入れるフィリングは自分で作ったけど、外側のペストリーはお店で買った、という意味。
"Half" は「〔あるものの〕半分」という意味です。
Half -「フィリング」
Half -「ペストリー」
I made half of it and I bought the other half.
(私は半分作って、もう半分は買いました。）
the other half=もう半分
I bought half of the food and prepared the rest.
(料理の半分は買って、残りは調理しました。）
prepare=準備する、調理する、用意する
rest=休み、休憩、休息、睡眠などの意味もありますが、ここでは残り、残余を意味します。
少しでも参考になれば幸いです。
アメリカ合衆国 
イギリス 
南アフリカ 
日本 
