You will need:
Central European Sallad. Here in Scandinavia our sallads are quite italian. Hardly any sauce to it, mostly fresh vegetables mixed together. In Central Europe however, the sallads are floating in mayonaise and cream, so this is like that.
Cut everything in small pieces. Make the sauce out pf the fluid stuff from canns etc. Warning, taste it off, bit by it!
Warning, this will last for some 20 guests if you don't keep everything small.
K.I.S.S. (Keep It Simple Stupid).
N.P.P.P. (No Piss Poor
Planning).