Found through a Google-hiccup at http://www.mexonline.com/mxrecipe.htm

The Ranger

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Tortas de Papas con Espinaca
(Potato Pancakes with Spinach)

Ingredients:
2 garlic cloves - minced
1 onion - chopped
4 medium potatoes - (cooked and peeled)
7 or 8 spinach leaves - chopped
1/2 cup cheese - cotija
2 eggs
handful of flour
salt and pepper to taste

Method:
1) Coarsely mash the potatoes (not too much). Add the rest of the
ingredients and mix well with your hands.
2) Form into patties about 3" wide.
3) Fry in 1/2 inch of vegetable oil, until they are golden brown on
both sides. Drain on paper towels.
4) Serve with salsa mexicana and slices of avocado.