Tri-Color Rotini Pasta Salad with Homemade Vinaigrette

Ingredients

• 24 ounces tri-color rotini pasta, uncooked
• 1 pint cherry tomatoes, halved
• 1 red onion, diced
• 1 green bell pepper, diced
• 8 ounces olives, sliced
• 12 ounces sliced pepperoni
• 16 ounces mozzarella cheese, cubed
• 1 cup grated parmesan cheese
• 1 ½ cups olive oil
• ½ cup red wine vinegar
• 2 tablespoons Italian seasoning
• 2 teaspoons garlic powder
• 1 ½ teaspoons salt
• 1 teaspoon pepper
• ½ teaspoon red pepper flakes