In a large, 4 to 6 quart saucepan warm the vegetable oil over medium heat. Add the cubed round steak, cubed pork, and chopped onions. Saute until the meat has been browned and the onions have become tender.
Add the 2 cups water and cubed potatoes. Continue to cook over medium heat stirring occasionally for 25 minutes or until potatoes are tender.
Add chopped green chile, garlic salt, pepper, salt, cumin, and oregano. Reduce heat and simmer for another 15 minutes then serve.