Broccoli Soup - from Sue

1 10 oz. pkg chopped broccoli (thawed & cooked)
6 tbsp. margarine
1 tbsp. onion
5 tbsp. flour
1 cup chicken broth
2 cups milk
1/4 tsp. salt & pepper
cheese (optional)

Blend & heat margarine, flour and onion. Stir in broth & milk slowly. Add rest of ingredients and heat through.