Cajun Squash Casserole

1/4 cup margarine
4 yellow squash, thinly sliced
4 medium tomatoes, cut into pieces
1/2 green bell pepper, chopped
1 large onion, thinly sliced

White Sauce:
4 tablespoons butter
4 tablespoons flour
1 cup milk
Dash of Tabasco sauce
Cajun seasoning
1/2 cup grated cheese (Cheddar, Swiss or Parmesan)

Heat margarine in skillet, add layers of squash, tomatoes, onions and pepper in that order, using 1/3 of vegetable for each layer. Make three layers. Season each layer with Cajun seasoning. Cover tightly and simmer until tender (10 to 15 minutes). Drain.

Stir in White Sauce. Sprinkle with cheese of your choice and bake at 350 degrees F for 20 minutes.