Mushroom Stuffed Tomatoes
["6 medium tomatoes (fresh)", "1 pt. fresh mushrooms, chopped (about 1 1/2 c.)", "2 Tbsp. butter or margarine", "1/2 c. dairy sour cream", "2 beaten egg yolks", "1/4 c. fine dry bread crumbs", "1 tsp. salt", "dash of pepper", "dash of thyme", "1 Tbsp. melted butter", "3 Tbsp. dry bread crumbs"]
["Cut stem end from tomatoes; scoop out pulp.", "Turn shells upside down to drain.", "Meanwhile, chop pulp fine, measure 1 cup and set aside.", "Cook mushrooms in 2 tablespoons butter or margarine until tender.", "Combine sour cream and egg yolks.", "Add to mushrooms with the tomato pulp; mix well.", "Stir in 1/4 cup bread crumbs, salt, pepper and thyme.", "Cook and stir until mixture thickens and boils."]
["tomatoes", "fresh mushrooms", "butter", "sour cream", "egg yolks", "bread crumbs", "salt", "pepper", "thyme", "butter", "bread crumbs"]