Playing live at the Swedish casino in Stockholm. You know statrun half-commi kind of thing.

And it is in Swedish Krona so the blinds are around 3$

I pick up black Queens UTG, and raise to 60 - and get 4 callers. Standard raise and callers on flop for this table.

Flop (240)
I bet 200, and CO raises to 600.
All else have folded and it is back to me.

He started with 1900, and I have him covered.

I have seen him before, and he is a regular. He has been playing some odd hands, and I have seen him all on the flop with 2 pair agains a floped straight.

What do I do here and onwards?