Menu on mobile

Hey there,

I have a very straightforward question.

My website is http://www.travelsmart.bg

On mobile phone my menu turns into this really ugly drop-down menu that shows by default (if not clicked) the last item of the menu. How can I change that?

WHat I am looking for is at least something that says Menu and has the colors of my original menu.
Ot i can have a button that would laund a slide from the left with the menu items.

Anything would be better that what I have now. 🙂
Thanks!

https://wordpress.org/plugins/megamenu/