小菜一碟

yǔ jī gòu gǎi gé bǐ qi lai zhè xiē dōu shì xiǎo cài yī dié

与机构改革比起来，这些都是小菜一碟！

Compared to institutional reforms, these are a piece of cake!

zhè cì cè yàn hé shàng cì bǐ jiù shì xiǎo cài yī dié

这次测验和上次比就是小菜一碟。

This test was a piece of cake compared to the last one.

wǒ xiǎng zhè duì nǐ lái shuō yě zhǐ bu guò shì xiǎo cài yī dié

我想这对你来说也只不过是小菜一碟。

I guess it's a piece of cake for you.