Comment by MrJohz
15 hours ago
The first two things that spring to mind are pasties from the UK (which are not usually spherical but can get quite hemispherical), and the "UFO-Döner" from Germany (which are more oblate spheroids). Maybe by combining these ideas, your friend can get closer to their dream?
Beef Wellington could be spherical if you so chose.
I suspect that deep-fried-battered haggis might exist which could be very spherical.
British steak and kidney pudding (a steamed pie of suet pastry) is a truncated cone shape, could go spherical with the right pastry case.
A truncated cone is called a "frustrum" which always seemed fitting to me.