Ah I see. This looks a bit different than OP's image. This requires further research in food cube science.

I do believe this configuration that you listed could be a new sub-Type of food topology. It combines four starches with filling in between, as two Type II sandwiches orthogonally configured.

Since you can theoretically make modifications like this to the other Types, it might be easier to make these new configurations subtypes of the main categories instead of making a Type VII (we should reserve these for 4D foods).

This particular case is a biaxial Type IIa sandwich.

In this case the starch does not fully cover any of the sides of the cube, thus this is a salad.