Chalupa

1 lb. pinto beans
3 lbs. pork roast
7 cups water
1/2 cup chopped onion
2 garlic cloves
1 tablespoon salt
2 tablespoons chili powder
1 teaspoon cummin
1 teaspoon oregano
1 can chopped green chilies

Put all ingredients in crock pot and cook on low all day.  Remove lid for last 30 minutes and it will thicken a bit.  Serve over corn chips or wrapped in a tortilla.  Top with your favorite toppings.  We like cheese, sour cream, tomatoes, cilantro, and avocado.