1In 10-inch skillet, cook chorizo over medium-high heat about 5 minutes, stirring frequently, until brown; drain.
2In medium bowl, thoroughly stir hot milk, dry potatoes, onion, melted butter, parsley, garlic and salt until consistency of stiff mashed potatoes. Stir in chorizo.
3Heat oil on griddle over medium-high heat. Place 2 tablespoons filling on half of each tortilla; top filling with 1 slice cheese. Fold each tortilla over onto filling. Heat on griddle, turning once, until cheese is melted. Serve with your favorite salsa, if desired.