In a large bowl, mix the arepa flour, salt, and vegetable oil.
Gradually add water, stirring until a smooth, pliable dough forms. The dough should be soft but not too sticky. Adjust water or flour as needed.
Cover the dough with a damp cloth and let it rest for about 15 minutes.
Heat vegetable oil in a large skillet over medium heat.
Add chopped onions and garlic, and sauté until they become translucent.
Add the ground beef or chicken and cook until browned.
Add diced potato, peas, cilantro, cumin, paprika, salt, and pepper. Cook until the potatoes are tender and the mixture is well combined. Let the filling cool slightly.
Divide the dough into small balls (about the size of a golf ball).
On a lightly floured surface, flatten each ball into a thin circle using a rolling pin or your hands.
Place a spoonful of filling in the center of each dough circle.
Fold the dough over to cover the filling and press the edges together to seal. You can use a fork to crimp the edges or press them with your fingers.
Heat vegetable oil in a deep fryer or large skillet over medium heat. The oil should be about 350°F (175°C).
Fry the empanadas in batches, turning occasionally, until they are golden brown and crispy, about 3-4 minutes per side.
Remove the empanadas with a slotted spoon and drain on paper towels.
Enjoy your meal!