Butternut Squash and Potato Soup

I got this recipe online at http://allrecipes.com/recipe/butternut-squash-soup-ii/ ...  it's super tasty, easy, and is more satiating than a full on squash soup. 

Ingredients

•  2 tablespoons butter
•  1 small onion, chopped
•  1 stalk celery, chopped
•  1 medium carrot, chopped
•  2 medium potatoes, cubed
•  1 medium butternut squash - peeled, seeded, and cubed
•  1 (32 fluid ounce) container chicken stock
•  salt and freshly ground black pepper to taste

Directions

1. Melt the butter in a large pot, and cook the onion, celery, carrot, potatoes, and squash until lightly browned. I found this took around 15 minutes and went quicker if I stirred less.
2. Pour in enough of the chicken stock to cover vegetables. 
3. Bring to a boil.
4. Reduce heat to low, cover pot, and simmer 40 minutes, or until all vegetables are tender.
5. Transfer the soup to a blender, and blend until smooth. Return to pot. Or, use a hand blender and blend in the pot.
6. Mix in any remaining stock to attain desired consistency. 
7. Season with salt and pepper.

Serves: 4ish