This from Kraft Kitchens September:

What You Need

1 large Spaghetti squash (3 lb.)
2 Tbsp. Grated Parmesan Cheese
1/2 cup Shredded Mozzarella Cheese
2 Plum tomatoes, finely chopped
1/4 cup chopped fresh parsley

Make It

PIERCE squash several times with fork or sharp knife to allow steam to
escape. Microwave on HIGH 10 min. or just until squash is softened, turning
after 5 min. Let stand 5 min.

CUT squash in half; remove and discard seeds. Use fork to scrape insides of
squash to form strands; place in large bowl. Add remaining ingredients; toss
lightly with fork. Spoon into 1 squash shell; discard remaining shell.

MICROWAVE 2 min. or until heated through.

Kraft Kitchens TipsMake Ahead

Microwave squash and pull into strands as directed; place in microwaveable
bowl. Refrigerate up to 2 days. When ready to serve, microwave on HIGH 3 to
5 min. or until heated through.