Tuna Noodle Casserole

• 1/2 package (8 oz) of whole wheat pasta
• 2 6-ounce cans of tuna, drained
• 1 onion, chopped
• 3 tablespoons butter
• 2 tablespoons all-purpose flour
• 2 cups milk
• 1 teaspoon salt
• dash of pepper
• 1 1/2 cups (6 ounces) shredded mozzarella cheese
• 1 1/2 to 2 cups shredded cheddar cheese

Instructions: 

1. In a large stock pot, cook the pasta or egg noodles according to package instructions. Drain pasta in a strainer.
2. In the now-empty stock pot, melt the butter. Add onions and saute until onions are tender. Stir in flour to make a thick paste. Add milk, salt, and pepper. Cook and stir until bubbly and slightly thickened. Remove from heat.
3. Add cooked pasta and drained tuna to sauce, stirring to coat. Stir in mozzarella cheese.
4. Pour into a lightly greased 9x13-inch baking dish. Top with shredded cheddar cheese.
5. Bake uncovered at 350 degrees. Bake for 20 minutes or until cheese is bubbly.