Ingredients
1-1/2 pounds ground beef1 medium onion, chopped2-1/2 cups spaghetti sauce8 ounces spaghetti, cooked and drained3 tablespoons butter2 tablespoons all-purpose flour1/2 teaspoon salt1-1/2 cups whole milk1-1/2 cups shredded cheddar cheese, divided1/4 cup grated Parmesan cheese
Preparation
In a skillet, cook beef and onion over medium heat until meat is no longer pink; drain. Stir in spaghetti sauce. Cover and simmer for 10 minutes. Stir in spaghetti; set aside.
In a saucepan, melt butter. Stir in flour and salt until smooth. Gradually add milk. Bring to a boil; cook and stir for 2 minutes or until thickened. Remove from the heat. Stir in 3/4 cup cheddar cheese and Parmesan cheese until melted.
Place half of the spaghetti mixture in a greased 13x9-in. baking dish. Top with cheese sauce and the remaining spaghetti mixture. Sprinkle with remaining cheddar cheese.
Bake, uncovered, at 350° for 30 minutes or until heated through.
