Name: Green Spaghetti with Roasted Poblano and Cilantro Sauce Recipe
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Cuisine: Mexican-inspired fusion
Ingredients: 1 lb poblano peppers (about 4 peppers); 4 cloves garlic, roughly chopped (about 2 tbsp); 4 oz cream cheese; 1/2 cup chicken stock; 1 bunch cilantro (weighed 3 oz), plus extra for garnish; 1/2 cup heavy whipping cream; 1 tsp salt, plus more to taste; 1 lb spaghetti; 1/4 cup butter, cut into pats (salted or unsalted); Salt, for pasta water

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I absolutely love this Green Spaghetti with Roasted Poblano and Cilantro Sauce Recipe because it brings together vibrant flavors and comforting textures in such a unique way. The smoky depth from the roasted poblanos paired with the fresh, herbaceous notes of cilantro creates a sauce that's creamy but bright, making it feel both indulgent and fresh. Every time I make it, I’m amazed at how simple ingredients transform into something that looks stunning on the plate and tastes like a special occasion dinner, even on a regular weeknight.

Why You'll Love This Green Spaghetti with Roasted Poblano and Cilantro Sauce Recipe

What truly makes this dish stand out for me is the incredible balance of flavors. The roasted poblano peppers add a gentle smoky heat that’s mellowed by the cream cheese and heavy cream, giving the sauce a luxuriously smooth texture. Then, when I blend in the fresh cilantro, there’s this lovely herbal brightness that enlivens every bite. It’s complex but approachable, perfect for anyone who loves bold yet comforting meals.

Beyond taste, I’m always impressed by how easy this recipe is to pull together. Once you roast the poblanos, the sauce comes together quickly in a blender, which means less time fussing and more time enjoying the aromas filling your kitchen. It’s perfect for casual dinners with family or impressing friends with something a little different but entirely delicious. Plus, it’s a great way to introduce more green veggies into a pasta dish without feeling like you’re sacrificing flavor.

Ingredients You'll Need

A clear glass bowl filled with light yellow spaghetti noodles sits on a white marbled surface. A woman's hand is pouring a thick, pale green sauce over the spaghetti from a blender or jug, creating a smooth layer of sauce on top of the noodles. Silver tongs rest inside the bowl among the noodles, partly lifted as if ready to mix the dish. The image shows a close, top-down view with soft lighting. photo taken with an iphone --ar 4:5 --v 7

All you need are a handful of straightforward, fresh ingredients that each play an essential role in achieving the rich, creamy, and vibrant sauce that coats the spaghetti perfectly. Each component brings its own texture and flavor, from the smokiness of roasted poblanos to the creamy tang of cream cheese and the fresh snap of cilantro.

Quick Tip

All ingredient amounts are listed in the recipe card below

Poblano peppers: Roasting poblanos is key for smoky flavor and mellow heat, so don't skip this step.
Garlic: Adds savory depth that complements the richness of the cream cheese.
Cream cheese: Brings creaminess and a subtle tang that balances the peppers.
Chicken stock: Lightens the sauce and adds a subtle umami background note.
Cilantro: Fresh cilantro is the bright star that lifts the entire sauce with herbal freshness.
Heavy whipping cream: Makes the sauce silky and luscious, perfect for coating pasta.
Salt: Essential for seasoning and enhancing all flavors.
Spaghetti: Use your favorite quality pasta to absorb the sauce perfectly.
Butter: Adds a luxurious finish that helps the sauce cling to the noodles.

Directions

Step 1: Get your poblano peppers roasted first. If you have a gas stove or grill, place them directly over the open flame and turn frequently until all sides are blackened, which usually takes about 10 minutes. If not, use your oven broiler on high. Place them on a sheet tray, turning every few minutes until evenly charred. I always turn on the kitchen fan because the smoke gets strong and flavorful.

Step 2: Once blackened, quickly transfer the poblanos to a bowl and cover tightly with plastic wrap. Let them steam for about 5 minutes—this loosens the skin and makes peeling much easier.

Step 3: Peel off the blackened skin carefully, then cut open the peppers to remove seeds, stems, and those white ribs to reduce heat and bitterness. You’ll be left with tender, smoky flesh that's the base for the sauce.

Step 4: Add the peeled poblanos to a blender along with the chopped garlic, cream cheese, and chicken stock. Blend until you have a smooth, luscious base.

Step 5: Next, toss in the fresh cilantro, heavy cream, and a teaspoon of salt before blending again. Taste your sauce here and add a bit more salt if needed. It’s important that the flavors are well balanced to make the sauce shine.

Step 6: Meanwhile, bring a large pot of salted water to a boil and cook your spaghetti according to package instructions until al dente. The pasta should be tender but still have a bite to it.

Step 7: Drain the noodles and return them to the pot. Stir in the pats of butter and toss until melted and the spaghetti is glossy and coated.

Step 8: Pour the poblano-cilantro sauce over the buttery pasta and toss well to combine. The sauce will thicken slightly as it clings to the noodles. Garnish with extra cilantro if you like, and serve immediately.

Servings and Timing

This recipe generously serves 6 people, making it a great option for family dinners or feeding a small crowd. Prep time is about 10 minutes if you’re organized, mainly because of peeling the peppers. Roasting the poblanos takes around 10 minutes, and blending plus seasoning adds another 5 minutes. Cooking the spaghetti takes roughly 8 to 10 minutes depending on your pasta brand. Overall, you’re looking at approximately 35 minutes from start to finish, with no additional resting time needed—so you can dig in while everything is fresh and warm.

How to Serve This Green Spaghetti with Roasted Poblano and Cilantro Sauce Recipe

A white bowl filled with thick, yellowish-green noodles mixed evenly with a creamy green sauce, topped with small green herb leaves scattered on top. The bowl sits on a white marbled surface with a silver fork placed near the bowl's edge. The noodles have a slightly smooth and soft texture with visible bits of herbs inside the sauce, making it look fresh and flavorful. Photo taken with an iphone --ar 4:5 --v 7

When I serve this dish, I love keeping things simple so the star green sauce really shines. A crisp, fresh side salad with lime vinaigrette complements the smoky richness beautifully, offering a nice contrast. Roasted or grilled vegetables also work well here — think grilled corn or sautéed zucchini — to stay within the fresh, summery flavor profile.

For plating, I like twirling the spaghetti into neat nests using a large fork, then garnishing generously with fresh cilantro leaves and a sprinkle of freshly cracked black pepper. Adding a squeeze of lime on the side can brighten each bite for guests who like a little extra zing. I tend to serve this dish hot right after mixing so the sauce stays silky, but it’s equally delicious at room temperature for casual gatherings.

Variations

I love experimenting with this Green Spaghetti with Roasted Poblano and Cilantro Sauce Recipe by swapping or adding ingredients to suit different tastes or dietary needs. For a vegan version, I replace the cream cheese and heavy cream with silken tofu and coconut milk, which still keeps the sauce creamy and rich but lighter. Nutritional yeast adds a subtle cheesy note in those cases.

If you want to switch up the flavor profile, try adding a handful of fresh spinach or kale to the blender for an even greener sauce packed with nutrients. For a smoky twist, a dash of smoked paprika or chipotle powder works wonders to deepen the heat without changing the texture. Or, if you prefer a milder dish, simply reduce the number of poblanos and add more cream cheese to mellow it out.

Different cooking methods for the poblanos can also change the character of this dish. Instead of roasting over a flame, you could try roasting them whole wrapped in foil at 400°F for 25 minutes, but I find direct flame roasting offers the best smoky flavor. When in a rush, you can even substitute roasted poblano jarred peppers, though fresh is always best for that vibrant green color and brightness.

Storage and Reheating

Storing Leftovers

Leftover green spaghetti stores really well in an airtight container placed in the refrigerator. I usually keep it for up to 3 days, which gives you plenty of time to enjoy it again without losing that fresh flavor. The sauce tends to thicken in the fridge, so a quick stir before reheating helps bring back the creaminess.

Freezing

Freezing this dish is possible, but I recommend freezing just the sauce separately in a freezer-safe container or bag. This prevents the pasta from becoming too mushy when reheated. The sauce keeps well frozen for up to 2 months. Defrost it overnight in the fridge before warming gently and tossing with freshly cooked pasta for the best texture.

Reheating

To reheat, I find the best method is to warm the pasta gently in a skillet over low heat, adding a splash of chicken stock or water to loosen the sauce as it heats. Avoid using the microwave if possible, as it can dry out the pasta and make the texture less pleasant. Slow, gentle reheating helps preserve that silky sauce and fresh cilantro flavor.

FAQs

Can I use a different type of pasta for the Green Spaghetti with Roasted Poblano and Cilantro Sauce Recipe?

Absolutely! While spaghetti works wonderfully to hold the sauce, I’ve also used fettuccine or linguine with great results. Even short pastas like penne could work if you prefer. Just make sure to adjust cooking times accordingly so the pasta doesn’t get too soft.

How spicy is the sauce, and can I adjust the heat?

The sauce has a mild to medium heat, thanks to the poblanos’ natural warmth balanced by creamy ingredients. If you want to tone it down, make sure to remove all seeds and ribs from the peppers as those carry the most heat. Conversely, add a pinch of cayenne or use a jalapeño alongside the poblanos for more kick.

Is this recipe suitable for vegetarians or vegans?

This traditional version isn’t vegan because of the cream cheese, heavy cream, and chicken stock, but it’s easily adaptable. Use vegetable stock and plant-based cream substitutes, plus vegan cream cheese or blended cashews, and you’ll have a flavorful vegan green pasta sauce.

Can I prepare the sauce ahead of time?

Yes, the poblano-cilantro sauce can be made a day in advance and stored tightly covered in the fridge. Just give it a good stir or quick blend before tossing with freshly cooked pasta. This actually helps the flavors meld even more!

What’s the best way to roast poblanos if I don’t have a gas stove or grill?

If you don’t have access to an open flame, the broiler method works like a charm. Just place the peppers under a high broiler setting and turn them often to get evenly blackened skins. It’s a great alternative that still adds that signature smoky flavor.

Conclusion

I hope you feel inspired to make this Green Spaghetti with Roasted Poblano and Cilantro Sauce Recipe soon because it truly has become one of my go-to dishes when I want something both comforting and exciting. It’s easy to prepare, packed with bold but balanced flavors, and always a crowd-pleaser. Trust me, once you try it, you’ll understand why it’s a special dish I keep coming back to and love sharing with friends and family.

Green Spaghetti with Roasted Poblano and Cilantro Sauce Recipe

Why You'll Love This Green Spaghetti with Roasted Poblano and Cilantro Sauce Recipe