Pasta in the Disposer?!?!?!?!?
What a shame! Pasta NEVER would be left! My mom says it always, "Mangiala tutta!" You have to calculate the right amount of pasta per person... more or less 0.070 Kg each one, that means that 1 kilo would be enough for 8-10 people!
I eat at least one portion of pasta every day! Sometimes twice a day, what awful wasting of meal there would be if we didn't calculate the righ amount?!?
Pasta can be bounced in the wok, if you have some pasta left... Put it in the wok with medium calor, then add a bit of butter, some scrubbed cheese (and some scrubbed bread too if you like) and make them bouncing...MMMHM!!! What a wonderful way to prepare your dinner if you have some pasta left from lunch and nothing else... better with garlic and tomatoes!

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About European rules, I asked my father how does it works: of course no government agent will never come to your house to check what do you waste in your kitchen sinks, but is FORBIDDEN to waste "any solid material that is not bio-degradable" throughout the waste line, so I suppose that all you take away from your dishes can surely be wasted through the disposer, such as bones or fruit skin, but absolutely NO the paper cases like pizza boxes of like take-away of chinese restaurant!!! LOL
Rich, here it works exactly like over there! What a strange thing, we're so far but something works the same!
Here (better, in condos'town), people have to sort trash: PLASTIC-PAPER-GLASS-HUMUS-UNSORTABLE!!! Each category has a different color bags and the garbage men collect them home-to-home.
As we live out of town, on the hill (detached house), for us it works a bit differently: we have the same to sort our trash in the same way, but for PLASTIC-PAPER-GLASS-UNSORTABLES we put them separately in the local waste collectors(no home-to-home collectors for us), and for HUMUS, we compost every kitchen waste (that would have been throuwn away) in the back yard composter.