Preheat oven to 350 degrees F. Lightly grease a baking sheet.
Place
spaghetti squash cut sides down on the prepared baking sheet, and bake
30 minutes in the preheated oven, or until a sharp knife can be inserted
with only a little resistance. Remove squash from oven, and set aside
to cool enough to be easily handled.
Meanwhile,
heat oil in a skillet over medium heat. Saute onion in oil until
tender. Add garlic, and saute for 2 to 3 minutes. Stir in the tomatoes,
and cook only until tomatoes are warm.
Use
a large spoon to scoop the stringy pulp from the squash, and place in a
medium bowl. Toss with the sauteed vegetables, feta cheese, olives, and
basil. Serve warm.
