hi welcome to the GMB. sorry, haven't a clue as to your dish.......... asking the obvious probably, but since it looks to contain uranium, does it glow under a uv or black light source?
'European' gives a very broad sweep of potential sources - but would agree, yes, is very likely since a lot of Uranium glass was made in Europe c. 1850 - 1950.
Looks rather large for a trinket set piece - might be a stand alone item of course - hope someone here can help you.