Stuffed Zucchini
["6 small zucchini", "1/2 lb. hamburg", "1/3 c. chopped onion", "1 large clove garlic, chopped", "1 tsp. oregano, crushed", "2 Tbsp. olive oil", "1 (8 oz.) can tomato sauce", "1/4 c. Parmesan cheese", "salt and pepper to taste"]
["Cut lengthwise slice from top of zucchini; scoop out seeds and pulp, leaving 1/4-inch shell.", "Coarsely chop pulp and seeds.", "In skillet, brown beef, onion, garlic and oregano in oil until onion is tender.", "Add pulp and seeds, 1/4 cup sauce, cheese, salt and pepper.", "Spoon into zucchini shells; arrange in shallow baking pan.", "Pour remaining sauce over zucchini; sprinkle with Parmesan. Cover and bake at 375\u00b0 for 40 minutes until tender.", "Uncover and bake 5 minutes more.", "Add Mozzarella or Muenster cheese if desired."]
["zucchini", "hamburg", "onion", "clove garlic", "oregano", "olive oil", "tomato sauce", "Parmesan cheese", "salt"]