Dad's Macaroni and Cheese on BakeSpace.com

Ingredients

• 4 tablespoons unsalted butter, plus extra for the skillet
• 1 large yellow onion, cut in 1/8-inch dice
• 1 tablespoon minced garlic
• 3 tablespoons all-purpose flour
• 4 cups whole milk
• 1 teaspoon paprika
• 1/2 teaspoon ground nutmeg
• 2 teaspoons kosher salt
• 1 teaspoon freshly ground black pepper
• 3/4 cup grated extra-sharp Cheddar cheese
• 3/4 cup grated Wisconsin Asiago cheese
• 3/4 cup grated dry Jack cheese (Parmesan can be substituted)
• 1 pound elbow macaroni, cooked and drained
• 2 plum tomatoes, sliced
• 1/2 cup fresh breadcrumbs
• 1 tablespoon chopped parsley
• 1 tablespoon chopped thyme
• 1 tablespoon chopped chives