Cut stem from the tomatoes. To peel, place tomatoes one at a time in boiling water for 15 seconds; remove from water, and pull off the peel. Slice peeled tomatoes; set aside. Trim stem from okra, and cut in bite-sized pieces. In a saucepan over medium heat, combine tomatoes, okra, onion, butter, salt and pepper. Bring mixture to a boil. Reduce heat, and simmer, uncovered, 30 to 40 minutes or until some of the liquid has evaporated, leaving a thickened sauce. Makes 6 servings. MasterCook formatted by Ethel Snyder.