Instructions:

1. Prepare the dough
   Step 1:

   In a mixing bowl, combine the all-purpose flour, salt, and vegetable oil. Gradually add water and knead until a smooth dough is formed. Cover the dough with a damp cloth and let it rest for 30 minutes.
2. Prepare the filling
   Step 2:

   In a frying pan, heat 1 tablespoon of vegetable oil. Add cumin seeds and let them splutter. Add grated ginger and sauté for a minute. Add mashed potatoes, cooked green peas, coriander powder, turmeric powder, red chili powder, lemon juice, fresh cilantro, salt, and black pepper. Mix well and cook for 5 minutes. Remove from heat and let the filling cool.
3. Shape and fill the samosas
   Step 3:

   Divide the dough into small balls. Roll each ball into a thin circle. Cut the circle in half. Take one semicircle and fold it into a cone shape, overlapping the straight edge. Seal the edges using water. Fill the cone with the prepared potato and pea filling. Seal the top of the cone by pressing the edges together. Repeat with the remaining dough and filling.
4. Fry the samosas
   Step 4:

   In a frying pan, heat vegetable oil for frying. Fry the samosas in batches until they turn golden brown and crispy. Remove with a slotted spoon and drain on a paper towel to remove excess oil.
5. Serve and enjoy
   Step 5:

   Serve the vegan samosas hot with your favorite chutney or sauce. Enjoy the delicious and crispy samosas!