*What You’ll Need: °1 tbsp olive oil °1 chopped onion °1 (16 ounces) Packaging of pre-cooked frozen meatballs °1 ounce spaghetti sauce °1/2 cup water °1 pound spaghetti pasta °1/3 cup grated Parmesan cheese *How to do it Preheat the oven to 350 degrees Fahrenheit, spray a 13-degree × 9-inch glass baking dish with a […]