Preheat oven to 400F.
Place a medium skillet over medium-high heat with 2 turns of the pan of EVOO, about 2 tablespoons. Add the steak and cook until brown, 5-6 minutes. Add the onion and garlic and cook until the onion is tender, 3-4 minutes. Sprinkle the flour over the skillet, cook about 1 minute, then add the beef stock, Worcestershire sauce and peas. Cook until thickened and the peas have heated through, about 2-3 minutes. Season with salt and pepper, and remove from heat to cool slightly.
While the mixture is cooling, unroll the pie crusts and cut them in half, so you have four half moons. Divide the mixture between the four crusts, placing a mound on one side of each half moon, leaving a small border around the edge. Brush the edges of each with egg wash and fold in half to enclose the filling. Press down to seal and crimp with a fork. Brush the tops of the dough with egg wash and transfer to a baking sheet. Bake until golden brown, about 10 minutes.