Set on Monotone Board. Lot of Flop Action???

[jsnipes28]

Party NL50 6MAX
Hero~70 limps in MP 6 [img]/images/graemlins/club.gif[/img] 6 [img]/images/graemlins/heart.gif[/img]
Villain~55 limps on the button.
5 players see a Flop:
6 [img]/images/graemlins/spade.gif[/img] 9 [img]/images/graemlins/spade.gif[/img] K [img]/images/graemlins/spade.gif[/img]
Checked to Hero who bets $2 at a $2.3 pot.
Villain minraises to $4.
Hero raises to $12
Villain goes All-In for 50.
Hero?

I'm usually pretty wary of minraises but i've found that minraises on small bets can often be draws or something like A [img]/images/graemlins/spade.gif[/img] x. So i reraised the flop wanting to get more money in there. Should i just call that bet instead? Thoughts on how i should have played that please.
I ended up calling and will post the results after i get some feedback.
Thanks