Source: Cindy5_NY
adapted by http://theresalwaysthyme.blogspot.com/
1/2 cup chopped onion
1 clove garlic, minced
1/4 cup butter, melted
1 (10 oz) pkg. chopped spinach, thawed and drained
3 eggs, slightly beaten (2 eggs)
1 cup breadcrumbs (1/2 cup)
1/4 cup Parmesan cheese
dash Worcestershire sauce
1/2 teaspoon thyme
salt and pepper to taste
6 thick tomato slices
(***add 1/2 cup chicken stock if baking in individual gratins and add and another 10 or 15 minutes cooking time)
Sauté onions in butter until almost soft. Add garlic and cook for 30 seconds.
Combine spinach, sautéed onions and garlic, eggs, bread crumbs, cheese, Worcestershire, and seasonings.
Arrange tomato slices in a buttered baking dish. Divide spinach mixture evenly and spoon on top of tomato slices. Bake at 350 degrees for 15 minutes.