Spicy Taco Dip
["1 c. plain low-fat yogurt", "3 Tbsp. unsalted tomato paste", "1/2 to 1 tsp. chili powder", "1 tsp. onion, chopped"]
["Combine yogurt and tomato paste and blend well.", "Mix in remaining ingredients.", "Refrigerate for a few hours, if possible. Serve with taco chips or vegetables."]
["yogurt", "chili powder", "onion"]