Add 1 jar (15 oz.) of Alfredo sauce to a bowl, and add the 1 tsp. minced garlic, 1/4 tsp. black pepper, 1 cup shredded cheddar cheese, 1/4 c. Parmesan cheese, 2 tsp. rosemary leaves, 1/2 c. heavy whipping cream, and 1 c. skim milk. Stir all together. Pour over vegetables and stir well.