N+(으)로 할게요 ~ Making a choice

To say that you’ve made a decision (in a situation which requires you to choose from many), we use:
Noun+(으)로 할게요

Examples
비빔밥으로 할게요
I’ll have the bibimbap.
이거로 할게요
I’ll have this one.
장미로 할게요
I’ll take the roses.