Dough: Place the flour, eggs, salt and olive oil in a stand mixer
fitted with the dough hook. Add 3 tablespoons of water and process. Add more
water, 1 tablespoon at a time, until the mixture comes together and forms a ball.
Turn the dough out onto a lightly floured surface and knead to make sure it is
well mixed. Set aside to rest for 5 minutes.
Flatten the dough out on a lightly floured surface. Dust the top of the dough
with flour and roll it out, dusting with flour and flipping the dough over from time
to time, until it is about 1/16 inch thick and is the desired diameter.
Generously grease the timpano baking pan with butter and oil. Fold the dough
in half and then in half again, to form a triangle, and place it in the pan. Open the
dough and arrange it in the pan, gently pressing it against the bottom and the
sides, draping the extra dough over the sides. Set aside.
Heat the oven to 350 degrees F.
Filling: Have the salami, provolone, hard-boiled eggs, meat balls,
and tomato sauce at room temperature. Toss the drained pasta with the olive oil
and 2 cups of the tomato sauce. Distribute 6 generous cups of the pasta on the
bottom of the timpano. Top with 1 cup of the salami, 1 cup of the provolone,
6 of the hard-boiled eggs, 1 cup of the meat balls, and 1/3 cup of the Romano cheese.
Pour 2 cups of the ragu (tomato/meat sauce) over these ingredients. Top with
6 cups of the remaining pasta. Top that with the remaining 1 cup of salami, 1 cup meat
balls, and 1/3 cup Romano cheese. Pour 2 cups of the ragu over these ingredients.
Top with the remaining 2 cups of ragu over the pasta, (the ingredients should
now be about 1 inch below the rim of the pot). Spoon the remaining 2 cups of
ragu over the pasta. Pour the beaten eggs over the filling. Fold the pasta dough
over the filling to seal completely. Trim away and discard any double layers
Bake until lightly browned, about 1 hour.
Cover with aluminum foil and continue baking until the timpano is cooked
through and the dough is golden brown (the internal temperature will be
120 degrees F) about 30 minutes.
Remove from the oven and allow to rest for 30 minutes or more.
The baked timpano should not adhere to the pan.
If any part is still attached, carefully detach with a knife. Grasp the pan firmly
and invert the timpano onto a serving platter. Remove the pan and allow the
timpano to cool for 20 minutes.
Using a long, sharp knife, cut a circle about 3 inches in diameter in the
center of the timpano, making sure to cut all the way through to the bottom,
then slice the timpano as you would a pie into individual portions, leaving
the center circle as a support for the remaining pieces.