Pea Soup

1 teas safflower or sunflower oil
1 small or medium onion, chopped
10 oz bag of frozen peas
2.5 cups water
1 to 1.5 teas salt
optional: carrot or potato
Directions
Saute onion and oil for about 5 minutes, until soft. Add water and bring to boil. Add peas and salt until heated (if using carrot or potato boil until they are soft). Blend in food processor, blender, or with hand mixer.