Have BUSD in ETH Main net. How to transfer it to BSC?

I just signed up for Metamask and sent BUSD from Binance on eth20 but I want to use it on Autofarm which uses BSC. Doh.

So How to move it to BSC? Do I really have to send it back to binance and withdraw it again using BEP20 and pay 3 sets of transaction fees?