plot a surcafe having different length vectors and cell array

Hello,

I have a cell array of 7x7(see the picture). Inside every cell there are different number of values. For example in (2,2) there are 4 values and in (2,7) are 5.

I want to create a scatter or a surface plot in which:

In X axis be a row vector 1x7 (mppvals,see the picture)

In Y axis be a row vector 1x7 (uvals,see the picture)

And in the Z axis be every number of the cell array in every condition.

For example when the X has the second value of the row vector (1.60 an Y has also the second value of the other row vector (0.1), in the Z axis will be the values of (2,2) from the array.