You're what you eat taken to whole another level. An interesting little puzzler.

I keep getting lost. And eaten. Then lost some more. So I eat and try to get bigger. Then I get stuck. No end in sight, no hope. Just the endless choir in the background.

Will I ever escape?

English Lyrics: 

I am a bacteriophage! 
I eat the burgers and broccoli.
These puzzles get harder, bit by bit.
There is no escape is sight - I've reached the portals alirght.
On to the next level I go. 
Avoiding the things that hurt.
Screaming "yummy" with every bite.