Ingredients
Pasta and Seasonings
- 1 pound dry spaghetti
- 2 tablespoons olive oil
- 3 cloves minced garlic
- 1 tablespoon Italian seasoning
- ½ teaspoon salt
- ½ teaspoon pepper
Vegetables and Sauce
- 1 small diced onion
- 1 medium diced bell pepper
- 1 (24-ounce) jar marinara sauce (about 2 cups)
- 1 (14.5-ounce) can diced tomatoes, undrained
- 3 ½ cups chicken broth or water
- ⅓ cup chopped fresh basil
Topping
- 2 cups shredded mozzarella cheese
Instructions
- Preheat oven: Preheat your oven to 375 degrees Fahrenheit to ensure it reaches the perfect temperature for baking the spaghetti casserole evenly.
- Combine dry ingredients: In a 9 x 13-inch baking dish, add the dry spaghetti, olive oil, minced garlic, Italian seasoning, salt, and pepper. Toss well to evenly coat the pasta with the oil and seasonings.
- Add vegetables and liquids: Stir in the diced onion, diced bell pepper, marinara sauce, undrained diced tomatoes, chicken broth (or water), and chopped fresh basil into the baking dish, mixing until everything is thoroughly combined.
- Bake the spaghetti: Place the baking dish uncovered in the oven and bake for 40 minutes to allow the pasta to cook fully in the sauce and broth.
- Stir and add cheese: Remove the dish from the oven and gently stir the mixture to evenly distribute the ingredients. Sprinkle the shredded mozzarella cheese generously over the top.
- Finish baking: Return the dish to the oven and bake for an additional 10 to 15 minutes, or until the cheese is melted, golden, and bubbly.
- Serve: Remove from the oven, optionally garnish with more fresh basil, and serve the delicious spaghetti bake warm.
Notes
- You can substitute chicken broth with vegetable broth or water for a vegetarian option.
- Feel free to add cooked ground beef, sausage, or mushrooms for added protein and flavor.
- For a spicy kick, add red pepper flakes along with the Italian seasoning.
- Leftovers can be refrigerated for up to 3 days and reheated in the oven or microwave.
- Prep Time: 10 minutes
- Cook Time: 55 minutes
- Category: Dinner
- Method: Baking
- Cuisine: Italian-American