Chalupa

1 lb. pinto beans
3 lb. pork roast
7 cups water
1/2 cup chopped onion
2 cloves garlic, minced
1 Tbs. salt
2 Tbs. chili powder
1 Tbs. cumin
1 tsp. oregano
1 (4 oz) can chopped green chiles
tortilla chips

1. Put all ingredients except corn chips in crock pot or Dutch oven.
2. Cover and simmer 5 hours or until roast falls apart and beans are  tender.
3. Uncover and cook 1/2 hour.
4. Slice roast to desired thickness.
5. Serve over tortilla chips.
6. Pass toppings: chopped tomatoes, avocados, onions, shredded onions,  grated cheese,
    picante sauce.
Note: It may be made ahead and reheated and it freezes well.