• One may not eat Matza on Erev Pessach.
• One may not eat bread after mid-morning on Erev Pessach.
• One should eat a Kezayis (olive's worth) of bread at all 3 Shabbos meals.

How does one reconcile the above?

When Erev Pessach is on Shabbos - like this year, there are special considerations regarding the Shabbos meals.

One may not cook Chometz food that sticks to the pot since one will not be able to clean the pots (because it's Shabbos) and one cannot leave them dirty (since one cannot own Chometz on Pessach).

Shabbos Morning Services need to start early so that afterwards there will be enough time to eat Chometz, which becomes forbidden by a third of the day. Check your local luach (Jewish Calendar) for the correct time.

Since one should eat bread at all 3 Shabbos meals - yet in the afternoon one cannot eat bread - it's proper to divide the morning meal into two. After making Kiddush and Motzi and eating something one should say Grace after Meals and then go for a short walk, then make Motzi again to fulfill eating the third Shabbos meal.

One needs to stop eating bread by a third of the day, after which one destroy all remainder Chometz (e.g. by flushing it down the toilet) and says Kol Chamiro annulling all Chometz still in one's possession. One can then continue eating the meal.

Source Kitzur Shulchan Aruch 77:16, 115:3-4

There are opinions that one should eat the third Shabbos meal as usual, in the afternoon, using fruit, meat and fish. If one eats before mid-afternoon (before the halachic "10th hour" of the day)one can also eat food made from cooked Matza, like kneidelach.
One may not eat baked food made from Matza on Erev Pessach.

Those who have the custom of eating Matza Ashira ("Egg Matza") on Pessach can use them for Motzi for the 3rd meal, before mid-afternoon. Ashkenazim usually do not eat Egg Matza on Pessach.

Source: Shulchan Aruch, Orach Chaim 444:1

The Chofetz Chaim suggests that one do both: Divide the morning meal into two, as well as eating fruit, meat and fish (and kneidelach) in the afternoon.
However one should be careful not to eat too much and spoil ones appetite for the evening festive meal.

Source: Mishna Brura (8) ibid.

If one doesn't want to eat Chometz inside, one can make Kiddush and Motzi and eat a Kezayis (olive's worth) of bread outside, and then eat the rest of the meal inside, as long as everyone is aware of the arrangement before starting Kiddush. If possible, one should see the dining room from where one makes Kiddush.

Source: Shulchan Aruch, Orach Chaim 178:2, 273:1

- Danny
9 Nissan 5768