For cream of chicken soup, add in 1/4 tsp onion powder, 1/4 tsp garlic powder, 1/4 tsp. parsley, and 1/2 C cooked, shredded chicken
For cream of mushroom soup, add in 1/4-1/2 C. sauteed mushrooms while you're melting the butter. Cook until the mushrooms are soft. Once they get soft, I cut mine with a wooded spoon so I don't have huge chucks of mushrooms in my soup.