Your problem statement appears to have eliminated most solutions.
Try this:
x = rand(10,1);
y = rand(10,1);
z = rand(10,1);
xv = linspace(min(x), max(x), numel(x));
yv = linspace(min(y), max(y), numel(y));
[X,Y] = ndgrid(xv, yv);
Z = griddata(x, y, z, X, Y);
figure
surf(X, Y, Z)
view(0,90)
% view(90,0)
It creates a 3D surface, then orients it with view to create a 2D plot.
