Newfie Ham & Pea Soup

1)  2 c dried red lentils
2)  2 qt or so water
3)  1 pork hock, skin removed
4)  2 lg carrots, sliced
5)  2 med onions, chopped
6)  2/3 bunch celery, sliced (include leaves and center)
7)  salt & pepper

Saute 5)  &  6)  in a little oil.
Add  4) 

Add  3)  and water to cover, season.

Bring to boil, simmer low.
Add 1)  and adjust water depending on thickness as it cooks, stir frequently.
Simmer 2 hours.  Adjust seasonings.