In large skillet over medium ... same skillet, saute ground beef, crumbled. Stir in remaining ... Spoon into parboiled zucchini halves. Sprinkle with Parmesan cheese. Bake 20 minutes at 350 degrees.
Boil sliced zucchini for 10 minutes. Saute meat ... zucchini (leaving a boat) and mix into meat. ... mixture into zucchini boats and sprinkle with grated cheese. ... degrees for 30 minutes.
In fry pan, brown beef, onions and mushrooms. Drain. Cut about 6 zucchini in half. Scoop out seeds. Place zucchini "boats" in shallow glass baking ... top of zucchini boats.