Posting odds for the outright winner (from BC.Game):

I wouldn't be surprised if they changed significantly after the first-leg games are concluded.
We all like Cinderella-type of stories, but I don't expect Bodo/Glimt to get past Tottenham. I don't expect Tottenham to win the cup either. If I were to bet, I'd go with either Athletic Bilbao or Man United, slightly leaning towards United.
It'd still be assertive to say that Tottenham will get past Bodø/Glimt surely. Because we are talking about a club that eliminated Lazio a short time ago.

But let's see. It all depends on Ange Postecoglou to find a solution to their game plan.
I made a parlay for the Europa League today. My choices were like:
• Athletic Bilbao to win & over 2.5 goals
• Betis to win & BTTS
The odds were around 11.4. I was just looking for some fun.

I believe in Athletic Bilbao - Betis both to win tonight. But I'm not as confident as that if we talk about the parlay to win.