Can somebody tell me why this doesn't say "Ich esse meinen Sandwich"? As in in the accusative case? Excuses for being slow. ^^
I think I read somewhere that Sandwich can be either der or das. In this case, it's using the neutral case.
Both cases are correct, but I've really never heard someone using 'der', so 'das' is probably the most common, as used here. So: This is the accusative neuter case, aine. Take a look at this chart: http://en.wiktionary.org/wiki/mein#Inflection
In the previous examples, "sandwich" has been used as a masc. word. Makes no sense to use the neut. at this point.
Exactly, that totally got me now.