1. Preheat oven to 400°F. Roll out puff pastry sheet to a 10-inch square. Cut into 4 squares. Bake for 12 to 15 minutes or until golden.
2. While pastry is baking, sauté onion and garlic in oil in a skillet for 5 minutes. Add spinach and cook 3 minutes more.
3. Divide spinach mixture among puff pastry squares. Sprinkle with feta. Bake 5 minutes or until hot.
Serves 4. Per Serving: 230 calories, 10g carbs, 9g protein, 18g fat, 35mg cholesterol, 520mg sodium, 3g fiber
Total Cost: $3.50