Scalloped Tomatoes - cooking recipe

Ingredients

1 c. celery, chopped
1/2 c. finely chopped onions
2 Tbsp. margarine
2 Tbsp. flour
1 (No. 2 1/2) can tomatoes
3 slices day old bread, toasted
1 Tbsp. sugar
2 tsp. prepared mustard (optional)

Preparation

Cook the celery and onions in butter.
Blend in flour.
Butter toast and cut into 1/2-inch squares.
Mix all ingredients and pour into a greased 1 1/2 quart casserole dish.
Bake for 30 minutes and top with buttered bread.
Bake 20 minutes longer.