Unwrapping multiple faces with same texture quickly?

I am making Minecraft terrain by extruding parts of a plane. Is there an easy way to give the sides of the blocks the grass side texture without having to unwrap everything individually?

I basically need the same texture on every face without having to manually unwrap it, one by one. The selected faces (along with a few others) are what I’m trying to apply it to. Any help would be appreciated. Thanks!