Lentil Soup
["1 lb. lentils", "5 qt. water", "2 cloves garlic, chopped", "4 large onions, chopped", "3 celery stalks, chopped", "1/4 c. vegetable oil", "4 to 6 potatoes, peeled and diced", "4 carrots, sliced", "1 1/2 c. tomatoes, diced", "1 bag fresh spinach *", "1/2 tsp. black pepper", "1 tsp. chopped parsley", "salt to taste", "3 Tbsp. butter"]
["Wash lentils and soak in water overnight; drain.", "Bring 5 quarts of water to a boil.", "Saute onions, garlic and celery in vegetable oil and add to boiling water.", "Add all other ingredients and bring to a boil again.", "Lower heat; cover and cook 2 1/2 hours.", "Add additional seasonings to taste prior to serving."]
["lentils", "water", "garlic", "onions", "celery stalks", "vegetable oil", "potatoes", "carrots", "tomatoes", "fresh spinach", "black pepper", "parsley", "salt", "butter"]