Dressed Up Spaghetti Sauce

2 tablespoons olive oil
1 small onion, chopped
2 celery stalk, chopped
1 green bell pepper, chopped
2 garlic cloves, chopped
2 tablespoons chopped fresh parsley
1 (28- to 32-ounce) bottle prepared spaghetti sauce

1. In a saucepan, heat olive oil until moderately hot; sauté onion, celery, bell pepper, and garlic until
golden.
2. Add parsley and spaghetti sauce to vegetable mixture and heat through.