Spaghetti Squash Monterey Recipe
Introduction
Spaghetti Squash Monterey is a creamy, cheesy dish that transforms healthy spaghetti squash into a comforting casserole. With a blend of sautéed onions, sour cream, and melted Monterey Jack cheese, this recipe makes a flavorful and satisfying side or vegetarian main.

Ingredients
- 1 spaghetti squash
- 1/4 cup chopped onion
- 2 tablespoons butter
- 1/3 cup sour cream
- Salt & pepper to taste
- 2 cups grated Monterey Jack cheese, divided
- Paprika (smoked paprika recommended)
Instructions
- Step 1: Cut the spaghetti squash in half lengthwise and remove the seeds. Place the halves face down in a microwave-safe dish with about 1/4 inch of water. Cover with wax paper and microwave until the squash is tender, about 14 to 16 minutes. Let cool for 5 minutes, then use a fork to scrape out the strands into a medium bowl. Set aside.
- Step 2: While the squash cooks, melt the butter in a small skillet over medium heat. Add the chopped onion and sauté until soft and transparent, about 3 to 5 minutes.
- Step 3: To the bowl with the cooked squash, add the sautéed onion, sour cream, salt, pepper, and 1 cup of the grated Monterey Jack cheese. Mix everything well. Transfer the mixture into a buttered casserole dish or large pie plate. Sprinkle the remaining cheese evenly over the top and dust with paprika.
- Step 4: Bake in a preheated oven at 325°F (160°C) for 20 minutes, or until the cheese is melted and bubbly. Serve warm.
Tips & Variations
- For extra flavor, try adding minced garlic when sautéing the onions.
- Swap sour cream with Greek yogurt for a tangier, lighter option.
- Add cooked, crumbled bacon or diced cooked chicken for a heartier dish.
- Use regular paprika if smoked paprika isn’t available; it will still add pleasant color and mild flavor.
- Microwave times can vary depending on squash size; check tenderness by piercing with a fork.
Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 325°F (160°C) until warmed through, or microwave on medium power for a couple of minutes. The texture is best enjoyed fresh but still comforting when reheated.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I bake the spaghetti squash instead of microwaving it?
Yes, you can bake the squash at 375°F (190°C) for about 40-50 minutes, until tender. This method takes longer but develops a sweeter, roasted flavor.
Is this recipe gluten-free?
Yes, all the ingredients used are naturally gluten-free, making this a great option for those avoiding gluten.
PrintSpaghetti Squash Monterey Recipe
A creamy and cheesy baked spaghetti squash dish featuring sautéed onions, sour cream, and Monterey Jack cheese, finished with a smoky paprika topping. This comforting recipe is a delicious low-carb alternative to traditional pasta dishes.
- Prep Time: 15 minutes
- Cook Time: 36 minutes
- Total Time: 51 minutes
- Yield: 4 servings 1x
- Category: Side Dish
- Method: Baking
- Cuisine: American
Ingredients
Main Ingredients
- 1 spaghetti squash
- 1/4 cup chopped onion
- 2 tablespoons butter
- 1/3 cup sour cream
- Salt & pepper to taste
- 2 cups grated Monterey Jack cheese, divided
- Paprika (preferably smoked paprika) for garnish
Instructions
- Prepare the Spaghetti Squash: Cut the spaghetti squash in half lengthwise and remove the seeds. Place the halves face down in a microwave-safe dish with about 1/4 inch of water. Cover the dish with wax paper and microwave on high for approximately 14 to 16 minutes, or until the squash is tender. Let cool for 5 minutes.
- Extract the Squash Strands: Using a fork, scrape the flesh of the cooled squash to separate it into spaghetti-like strands. Transfer the strands into a medium bowl and set aside.
- Sauté the Onions: While the squash cooks, melt butter in a small skillet over medium heat. Add the chopped onion and sauté until soft and translucent, about 3-5 minutes.
- Combine Ingredients: Add the sautéed onions, sour cream, salt, pepper, and 1 cup of grated Monterey Jack cheese to the bowl with the spaghetti squash strands. Mix thoroughly until all ingredients are well incorporated.
- Assemble in Baking Dish: Butter a casserole dish or large pie plate. Transfer the squash mixture into the dish and spread evenly. Sprinkle the remaining 1 cup of grated cheese over the top, then dust with smoked paprika to taste.
- Bake: Place the casserole dish in a preheated oven at 325°F (160°C) and bake for 20 minutes, or until the cheese is melted and bubbly.
Notes
- For a crispier topping, broil the casserole for 2-3 minutes after baking, watching carefully to prevent burning.
- You can substitute sour cream with Greek yogurt for a tangier flavor and added protein.
- Use fresh paprika or smoked paprika depending on your preferred flavor profile.
- This dish pairs well with grilled chicken or a fresh green salad for a complete meal.
- Ensure the squash is cool enough to handle before scraping the strands to avoid burns.
Keywords: spaghetti squash, Monterey Jack cheese, baked squash, low-carb side dish, creamy squash casserole, smoked paprika

