It really depends on the family, and their appetite. I only eat it about once or twice a month, but I do have a friend that eats it every day. I think we should all come on here and post how much people eat Pizza. Post below me.
Eating anything in moderation is fine. I usually have pizza every Friday. Just don't go overboard to the point where you eat pizza every night.
once a week
they often eat pizza and hotdogs
it is very possible that Italian soccer players eat pizza but probably not often, so they can mantain a healthy diet.
Enough to go from earth to the moon and back twice
once a week
one a week
about once every week
She DOESN'T eat pizza. An easy way to check your choice is to remove the contraction. You would not say "she do not eat pizza," so you wouldn't say, "she don't eat pizza." On the other hand, "she does not eat pizza" indicates that "doesn't" is the right choice.
all snakes should eat a little every week or a bit more every other week
they eat mostly Pizza
a piranha eat all day every day