Prepare the Puerto Rican-style Picadillo as per the recipe.
Peel, chop, and boil the potatoes in salted water until fork tender, about 15 minutes.
Drain and mash the potatoes until smooth and consistent.
Mix in corn starch, sazon, and adobo seasoning into the mashed potatoes until it forms a dough-like consistency.
Using a ½ cup measuring cup, scoop large balls of the potato mixture.
Flatten each ball gently and fill with a tablespoon or two of picadillo.
Seal the potato mixture around the filling, ensuring a solid seal to prevent breaking during frying.
Heat oil in a frying pan and fry the stuffed potatoes until golden brown.
Drain on paper towels to remove excess oil.