These niggas talking that beef shit, I put bread on it, no burger bun
Dudes want beef and Meek put bread on them (money on a hit for their head). He uses a play on words by disregarding the burger buns because those are made from literal bread, not money.
This plays into the previous reference to a drive-thru.
To help improve the meaning of these lyrics, visit "Scared Now" by Game (Ft. Meek Mill) Lyrics and leave a comment on the lyrics box