Elbow Pasta Mac & Cheese

• 1 package Veggiecraft Elbow Pasta
• 4 tablespoons butter, divided
• 1/4 cup minced yellow onion
• 2 tablespoons all-purpose flour
• 1 teaspoon garlic powder
• ½ teaspoon salt
• ⅛ teaspoon black pepper
• 2 ½ cups whole milk
• 2 cups freshly shredded gruyere cheese
• 1 cup freshly shredded mozzarella cheese

Topping

• 1/2 cup panko breadcrumbs
• ¼ cup finely grated Parmesan cheese
• ¼ cup finely grated gouda
• ¼ teaspoon salt
• ⅛ teaspoon pepper
• 2 tablespoons olive oil

Garnish

• 1 bunch scallions, chopped