Why You’ll Love Monterey Spaghetti Recipe
Monterey Spaghetti is the ultimate comfort food casserole. It’s creamy, cheesy, and hearty enough to serve as a satisfying main dish. The combination of tangy sour cream, savory cheeses, and tender spinach creates a rich and flavorful base, while the crispy fried onions add irresistible texture on top.
This recipe is simple to prepare and perfect for busy weeknights, potlucks, or family gatherings. It can also be assembled ahead of time, making it a convenient option when you want something delicious without last-minute stress. Even better, leftovers reheat beautifully, so you can enjoy it again the next day.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
spaghetti noodles
eggs
sour cream
grated Parmesan cheese
minced garlic
shredded Monterey Jack cheese
frozen chopped spinach, thawed and well drained
French-fried onions
Directions
-
Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish and set aside.
-
Bring a large pot of salted water to a boil. Cook the spaghetti according to package instructions until al dente. Drain well and allow it to cool slightly.
-
In a large mixing bowl, whisk together the eggs, sour cream, grated Parmesan cheese, and minced garlic until smooth and well combined.
-
Add the cooked spaghetti to the bowl and toss until evenly coated.
-
Gently fold in the shredded Monterey Jack cheese, drained spinach, and half of the French-fried onions.
-
Transfer the mixture to the prepared baking dish and spread it evenly. Cover with foil.
-
Bake for about 30 minutes. Remove the foil, sprinkle the remaining French-fried onions over the top, and bake for an additional 5 to 10 minutes, or until the onions are golden and crisp.
-
Let the casserole rest for a few minutes before slicing and serving.
Servings and timing
Servings: 6 to 8
Prep time: 20 minutes
Cook time: 35 to 40 minutes
Total time: About 1 hour
Variations
For added protein, mix in cooked shredded chicken, diced ham, or crispy bacon before baking.
If you prefer a different cheese profile, substitute part of the Monterey Jack with mozzarella for extra melt or sharp cheddar for a stronger flavor.
Fresh spinach can be used instead of frozen. Simply sauté it briefly and drain well before adding.
For a touch of heat, stir in red pepper flakes or a pinch of cayenne pepper.
You can also add sautéed mushrooms, onions, or chopped broccoli for more vegetables and texture.
Storage/Reheating
Store leftover Monterey Spaghetti in an airtight container in the refrigerator for up to 4 days. Allow the casserole to cool completely before storing.
To reheat in the oven, cover with foil and warm at 350°F until heated through, about 15 to 20 minutes. Individual portions can be reheated in the microwave for 1 to 2 minutes. If the pasta seems slightly dry, add a small splash of milk before reheating to restore creaminess.
For longer storage, you can freeze the baked casserole tightly wrapped for up to 2 months. Thaw overnight in the refrigerator before reheating.
FAQs
Can I make Monterey Spaghetti ahead of time?
Yes, you can assemble the casserole up to 24 hours in advance. Cover and refrigerate, then bake when ready to serve.
Do I have to cook the spaghetti before baking?
Yes, the pasta must be cooked to al dente before mixing with the other ingredients and baking.
How do I prevent the casserole from becoming watery?
Make sure the spinach is thoroughly drained and squeezed of excess moisture before adding it to the mixture.
Can I use a different type of pasta?
Yes, while traditional spaghetti works best, other long pasta like linguine or even short pasta such as penne can be used.
Is it possible to make this dish vegetarian?
It already is vegetarian as written. Just ensure any additional ingredients you add fit your dietary preferences.
What can I serve with Monterey Spaghetti?
It pairs well with a simple green salad, garlic bread, or roasted vegetables for a complete meal.
Can I reduce the amount of cheese?
Yes, you can slightly reduce the cheese if desired, though the dish will be less rich and creamy.
Why are French-fried onions added on top?
They provide a crispy, savory topping that contrasts beautifully with the creamy pasta base.
Can I use fresh garlic instead of minced jarred garlic?
Absolutely. Freshly minced garlic will provide even more flavor.
How do I know when the casserole is done baking?
The casserole is ready when it is heated through, slightly set in the center, and the topping is golden brown and crisp.
Conclusion
Monterey Spaghetti is a comforting baked pasta casserole that delivers creamy texture, rich cheese flavor, and a satisfying crunch in every bite. It’s easy to prepare, versatile enough for variations, and perfect for feeding a family or bringing to a gathering. Whether enjoyed fresh from the oven or reheated the next day, this dish is sure to become a favorite at your table.
