Check or push the turn?

PokerStars No-Limit Hold'em, $0.25 BB (8 handed) from (Format: Bet The Pot)

BB ($23.75)
UTG ($51.55)
UTG+1 ($22.15)
MP1 ($10.10)
MP2 ($24.15)
CO ($89.20)
Button ($105.85)
Hero ($23.20)

Preflop: Hero is SB with , .
1 fold, UTG+1 calls $0.25, 1 fold, MP2 calls $0.25, CO raises to $0.75, 1 fold, Hero raises to $3, 1 fold, UTG+1 folds, MP2 folds, CO calls $2.25.

Flop: ($6.75) , , (2 players)
Hero bets $5.5, CO calls $5.50.

Turn: ($17.75) (2 players)
Hero???

You have about $15 left after your flop bet? Just push it in. He'll probably call with a pair + club here (JJ, QQ, KK, Ax, Tx) all of which you beat, lower sets/2pairs. He'll call with flushes too obviously but they only comprise a small percentile of his range, plus you have outs to catch up.