Macaroni Salad with Tomatoes

Bahan-bahan (7 porsi)

• 6 oz uncooked elbows (wheat or gluten-free)
• 2 ripe medium tomatoes (diced)
• 1/4 red onion (or white, finely chopped)
• 1/4 cup Hellmann's light mayonnaise
• 1 tbsp white vinegar
• 1/4 teaspoon garlic powder
• 1 tsp dried oregano
• 2.5 oz can sliced black olives
• kosher salt and black pepper (to taste)