Beans have protein.
4 seconds sound clip from the My Cousin Vinny movie soundboard.
You can hear this line at 00:03:28 in the Blu-ray version of the movie.
Quote context
[...]
- I never heard of that brand. Get this one. Maybe it's worth the penny.
- You're paying for advertising.
- It's got protein. We need protein.
- One burrito and one large slush.
- $21.67.
[...]