Creamy Penne Pasta Salad with Mayo Cool, creamy, and packed with flavor—this Penne Pasta Salad is perfect for summer gatherings, weeknight dinners, or Grandma’s backyard potluck. Made with simple ingredients and tossed in a tangy, herb-packed mayo dressing! Ingredients: 12 oz penne pasta, cooked and cooled 1/2 cup mayonnaise 1/4 cup sour cream or Greek yogurt 2 teaspoons Dijon mustard 1 tablespoon apple cider vinegar 1 teaspoon garlic powder 1/2 teaspoon onion powder Salt and pepper to taste 1 c