Baked Smoked Sausages With Mushrooms

6 plump smoked sausages

1/2lb. mushrooms, finely chopped

1 small onion, finely chopped

2 Tbsp. butter or margarine

1 Tbsp. Dijon-style mustard

1/4 cup whipping cream

2 small tomatoes diced

1 cup shredded swiss cheese

Split sausages. Arrange in a greased, shallow baking dish just large enough to hold them in a single layer.

Saute mushrooms and onions in butter over medium heat until lightly browned. Smoothly mix in the mustard and cream. Bring to boiling. cook, stirring occasionally, until liquid is reduced and slightly thickened.

Divide mushroom mixture evenly into split sausages. Top with sliced tomatoes, sprinkle evenly with cheese.

Bake, uncovered, at 450 degrees until sausages and cheese brown lightly. 15 to 20 minutes.