Meals, like the rest of their lives, are fairly chaotic affairs. Food depends on whatever Francis and Matthew are in the mood to make, sometimes Alfred's attempts at grilling on the stove (though flames and smoke and sometimes the fire department have appeared from time to time (some more often than others), his attempts have come out mostly edible), or when no one feels like bothering, Arthur gets that God-awful fast food, which happens to be most days.
They hardly bother with plates- and when they do, they eat off each others'. It took ages for Arthur to get used to it when he first moved in. Things like 'barbarians!' and 'How do you live in this pigsty?!' had been tossed around, and are still sometimes thrown out.
It doesn't help to have all their laptops and papers and mail spread across the table, either. It's a wonder they get anything done at all, really. There is bickering and occasional food-throwing from Francis and Arthur ("If you're going to be gay for each other, fine, but take it to the bedroom," Alfred had shouted once), laughter and instigation from Alfred, and unsuccessful attempts to 'solve the conflict' from Matthew.
Once they've finally decided they're bored with it all, Matthew is somehow always left to clean up.
He always wonders how everything on the table is free of food and his hair isn't.