Begin by mixing together the ravioli filling: In a small bowl, stir together the ricotta, Parmesan, and the egg.
Set up your pasta machine, and add the flour.
Turn it on and add the egg and water. Make the pasta.
Lay the pasta sheets on parchment covered baking sheets and cover with plastic wrap.
Cut each pasta sheet into two and a half inch wide rectangles, and top half with a teaspoon of filling. Paint the edges with the beaten egg white and press another cheese free rectangle on top. Press all around the edges with first your finger, and then a fork. Place them back on the pans and cover with plastic.
Bring a large pot of salted water to a boil.
Meanwhile make the sauce: In a small skillet, cook the bacon until crispy. Drain the bacon on a paper towel and reserve one tablespoon of bacon drippings.
In a very large skillet, add the reserved bacon drippings along with the olive oil, and heat on low heat. Cook the garlic and red pepper flakes, until the garlic is soft, about three minutes. Stir in the arugula, lemon juice, the tomato, and the bacon, and cook until the arugula is slightly wilted. Remove from the heat.
Boil the ravioli in salted water on a low boil for seven minutes and drain well. Add the ravioli to the arugula mixture, along with the butter. On low heat, toss until the butter is melted and the ravioli is coated. Serve with Parmesan cheese.