Bad flop play?

[MickeyHoldem]

1/3 NL 10-players

MP3 (~$200) read: passive...
Hero (~$600)

Pre-flop: Hero is button with A [img]/images/graemlins/club.gif[/img] 6 [img]/images/graemlins/club.gif[/img]
UTG raises to $10, 2 fold, MP1 calls $10, MP2 calls $10, MP3 calls $10, 1 fold, Hero calls $10, SB folds, BB calls $10

Flop: ($61) A [img]/images/graemlins/diamond.gif[/img] T [img]/images/graemlins/heart.gif[/img] 2 [img]/images/graemlins/club.gif[/img] <font color="blue">(6 players)</font>
BB checks, UTG checks, MP1 checks, MP2 checks, MP3 checks, Hero bets $20, 4 fold, MP3 raises to $40, Hero calls.

Turn: ($141) 5 [img]/images/graemlins/club.gif[/img] <font color="blue">(2 players)</font>
MP3 bets $45, Hero calls $45

River: ($231) 9 [img]/images/graemlins/club.gif[/img] <font color="blue">(2 players)</font>
MP3 checks, Hero bets $100, MP3 calls

Final Pot: ($426)

[amoeba]

I check behind on the flop.

there are no draws you really have to protect against and I want some value against KK-JJ, at the same time, I don't want to create a huge pot with top pair crap kicker.

[JeanieJ]

Against this many players you're not really looking to hit top pair here. Check/fold the flop... or check/call a smallish size bet.

Given the way you played it, I think I would've folded to the mini-raise on the flop. I'm smelling a set here and your top pair is no good.

You got lucky to hit the flush, but all in all I believe the way you played this is a losing play.