Cut zucchini in half lengthwise. Scoop out pulp, leaving a 1/4 inch
shell. Chop pulp and set aside. Place ground beef, onion and green
pepper in small casserole. Cover and microwave at High for 1 to 2
minutes, stirring once until beef is browned. Drain. Add zucchini
pulp, tomato sauce, 1 tablespoon Parmesan cheese, garlic powder and
salt to ground beef mixture. Place half of the beef mixture in each
zucchini shell. Sprinkle with remaining 1 tablespoon Parmesan cheese.
Place stuffed zucchini on a microwave roasting rack. Cover tightly
with heavy duty plastic wrap. Microwave at High for 1 1/2 minutes.
Give dish a half turn, and microwave at High for 1 1/2 to 3 1/2
minutes or until filling is set and zucchini is fork tender.