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–+ servings
An oval baking dish full of oven baked spaghetti.
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4.65 from 59 votes

Oven Baked Spaghetti

No boiling required with this oven baked spaghetti! Easy weeknight dinner!
Prep Time10 minutes
Cook Time50 minutes
Total Time1 hour
Course: dinner, lunch
Cuisine: Italian
Keyword: baked spaghetti, cheesy spaghetti, one pot pasta, oven baked spaghetti, spaghetti, spaghetti bake, viral oven baked spaghetti
Servings: 8 servings
Author: Food Dolls

Equipment

Ingredients

  • 16 ounces spaghetti uncooked
  • 16 ounces jar pasta sauce
  • 3 cups water
  • 1 teaspoon oregano or italian seasoning
  • 1 teaspoon salt more or less to taste
  • 1 teaspoon black pepper more or less to taste
  • 5 cloves garlic minced
  • 1 onion sliced thin
  • 2 Tablespoons olive oil
  • 1 cup mozzarella cheese shredded

Instructions

  • Preheat oven to 375 degrees Fahrenheit.
  • Add all the ingredients except for the mozzarella cheese to a large baking dish. Stir well.
    16 ounces spaghetti, 16 ounces jar pasta sauce, 3 cups water, 1 teaspoon oregano or italian seasoning, 1 teaspoon salt, 1 teaspoon black pepper, 5 cloves garlic, 1 onion, 2 Tablespoons olive oil
    Ingredients for oven baked spaghetti in an oval baking dish.
  • Cover and bake for 45 minutes. Remove from the oven about 20-25 minutes in and give it a stir. *Be sure not to skip this step.
    Baked spaghetti in an oval baking dish.
  • Top with mozzarella cheese and bake uncovered for an additional 8-10 minutes or until cheese is bubbly!
    1 cup mozzarella cheese
    Oven baked spaghetti topped with cheese.

Video

Notes

This is made in an approximately 11x7 baking dish, similar to this baking dish found here.
If you want to add ground beef, you can add cooked ground beef before baking it in the oven.
We have seen so many use vegan cheese for a non-dairy version, and everyone that has tried it, raves about it!
We slice the onions are sliced pretty big, but you can always chop them, or keep them out. They get cooked down and end up being really tender. It doesn't end up being crunchy and chunky onions.
For a flavor booster, substitute broth for water.
Can you use gluten-free pasta for this recipe? Yes, you can use gluten-free pasta. However, you will have to adjust the liquid. For chickpea pasta it tends to be more delicate so careful not to add too much liquid or it will get mushy.
Reheating leftovers: To reheat you want to add a splash of water, milk, or broth. Give it a little stir and microwave. The starch from the pasta really thickens it up, so you want to add a liquid in order to loosen it up a bit.
Here is another version of this baked spaghetti Baked Spaghetti Bolognese! 

Nutrition

Serving: 1serving | Calories: 306kcal | Carbohydrates: 48g | Protein: 11g | Fat: 8g | Saturated Fat: 3g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Cholesterol: 11mg | Sodium: 656mg | Potassium: 340mg | Fiber: 3g | Sugar: 4g | Vitamin A: 346IU | Vitamin C: 6mg | Calcium: 105mg | Iron: 2mg