Cook Green Giant® Veggie Spirals® Spaghetti Squash according to package directions; drain.
Meanwhile, heat olive oil in medium nonstick skillet and cook onion 4 minutes or until tender. Add garlic and cook 30 seconds or until fragrant. Add tomato and cook 4 minutes. Add spinach and cook 1 minute or until wilted.
Stir in Spaghetti Squash and cook 1 minute. Top with Goat Cheese.