Try this instead of sour cream on beans, vegetables, fruit, and tortillas.

2 tablespoons   skim milk

1 tablespoon   lemon juice

1 cup low fat cottage cheese   

Place all ingredients in a blender, and combine on medium-high speed until smooth and creamy.

Serve with Tropical Fruit Compote (see any recipe that uses sour cream).

Yield: 8 servings--Serving size: 2 1/2 tablespoons

Each serving provides:

Calories: 27 

Total fat: Less than 1 g 

Saturated fat: Less than 1 g 

Cholesterol: 2 mg 

Sodium: 117 mg 

Calcium: 24 mg 

Iron: Less than 1 mg

Source: http://www.nhlbi.nih.gov/health/public/heart/other/syah/hmsoucrm.htm