Baked Macaroni

My mom has made this recipe for years. Once you try it, you'll love it!

2 cups uncooke macaroni noodles.
1/2 cup of butter or magerine
2 tablespoon flour
1 1/2 cups milk
1 teaspoon salt
1/2 teaspoon pepper
2 cups grated cheddar cheese (We like sharp)

Boil macaroni noodles and drain. Melt butter in saucepan, add flour and allow to cook. Stir constantly for 2 minutes. Do not allow the butter to brown. Stir in cheese, milk, salt & pepper. Cook until smooth and thickened. Add macaroni and mix. Pour into 11x17 inch casserole dish. Top with slices of tomatoes and sprinkle remaining cheese ontop. Bake, covered in 350 degree oven for 35 minutes.