1Heat oven to 375°F. In large saucepan, cook macaroni to desired doneness as directed on package. Drain; rinse with hot water. Set aside.
2In same saucepan, melt 1/4 cup margarine. Stir in flour, salt and pepper; cook until mixture is smooth and bubbly. Gradually add milk; stir in mustard and hot pepper sauce. Cook until mixture boils and thickens, stirring constantly.
3Add cheeses, stirring until melted. Carefully stir in tomato and cooked macaroni. Spoon into ungreased 2-quart casserole. Combine bread crumbs and melted margarine; mix well. Sprinkle evenly over top.
4Bake at 375°F. for 20 minutes or until bubbly.