Shape the chilled dough into 24 balls, about 1 inch in diameter. Press each ball into a cup of the muffin pan, spreading evenly and up the sides, then spoon 1 teaspoon of the pecans into each muffin cup. Fill each cup with the egg mixture until evenly distributed, about 1 teaspoon in each. Bake until the filling is set, about 25 minutes. Cool on a wire rack for 10 minutes, and then remove from the muffin pan.