Pizza Salad

Ingredients

• 1 pound spiral macaroni, cooked and drained
• 3 medium tomatoes, diced and seeded
• 16 ounces cheddar cheese, cubed
• 1 to 2 bunches green onions, sliced
• 3 ounces sliced pepperoni
• 3/4 cup canola oil
• 2/3 cup grated Parmesan cheese
• 1/2 cup red wine vinegar
• 2 teaspoons dried oregano
• 1 teaspoon garlic powder
• 1 teaspoon salt
• 1/4 teaspoon pepper
• Croutons, optional