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The first time Aunt Anne handed me a bowl of espagueti verde, I understood why this dish has become a quiet legend in Mexican home kitchens. Roasted poblanos blended into a creamy, garlicky sauce — fragrant, velvety, the color of a summer meadow — clinging to every strand of spaghetti. It tasted like comfort food I had been waiting my whole life to discover. Over the last ten years, I’ve made it on busy Tuesday nights when I wanted something hearty without much fuss and on Sundays when I had time to roast the peppers slowly and savor the smoky aroma. If you love a creamy pasta recipe that delivers bold flavor with simple ingredients, or you’ve enjoyed our spaghetti with spinach , this one will quickly earn a spot in your rotation. Pull out a big pot, char those poblanos, and let me show you how to make it.
You Might Also Love
If you enjoy this Mexican Green Spaghetti, here are a few more recipes from my kitchen that bring the same comforting, crowd-pleasing energy to the table.
- Creamy Taco Pasta — bold Tex-Mex flavors in one pan, ready in under 30 minutes.
- One Pan Cheesy Taco Pasta Bake — a hearty, kid-approved dinner with melty cheese and warm spices.
- Mexican Street Corn Pasta Salad — smoky, tangy, and the side dish everyone asks for again.
- Creamy Garlic Penne Pasta — a velvety weeknight favorite that comes together in one pot.
Why You’ll Love Mexican Green Spaghetti?
- Velvety, herb-bright sauce: The blended poblanos, spinach, and cilantro create a silky, vibrant green sauce that coats every strand with mellow, smoky depth.
- Creamy without being heavy: Sour cream and softened cream cheese give the dish a rich, balanced body — luxurious but never cloying.
- Smoky-fresh flavor balance: Roasted poblanos bring warm, earthy smoke while fresh cilantro and a touch of jalapeño add brightness and a gentle kick.
- Tender, perfectly coated spaghetti: I cook the pasta until just al dente so the noodles drink in the sauce without turning soft, giving you that classic restaurant-style texture.
- Comforting yet impressive: It feels like a special-occasion dish but uses pantry staples and simple steps — exactly the kind of recipe I love sharing.
Ingredient Notes
- Poblano peppers — Look for firm, glossy, deep-green poblanos; they roast into the smoky backbone of this sauce.
- Spaghetti — A sturdy dry spaghetti holds the creamy sauce best; cook just to al dente for the right bite.
- Olive oil — A quality extra-virgin oil adds a soft, peppery base when you sauté the aromatics.
- Onion — Choose a small white or yellow onion; it should feel heavy and have tight, papery skin.
- Jalapeño or serrano — Pick a smooth, firm pepper; serrano runs hotter, so adjust based on your heat preference.
- Garlic cloves — Fresh whole heads only — pre-minced jarred garlic tastes flat and weakens the sauce.
- Spinach leaves — Bright, perky baby spinach blends smoothest; avoid bunches that look wilted or yellowed.
- Cilantro — A fresh, fragrant bunch with crisp stems gives the sauce its signature lift and color.
- Sour cream or crema Mexicana — Crema is silkier and slightly tangier; both work beautifully in a creamy pasta recipe like this one.
- Bouillon — A good chicken or vegetable bouillon deepens the savory backbone; granules dissolve more evenly than cubes.
- Milk or half and half — Half and half delivers a richer mouthfeel; whole milk keeps it lighter and lets the poblano shine.
- Cream cheese — Use full-fat, properly softened to room temperature so it melts smoothly into the sauce without lumps.
- Salt and black pepper — Freshly ground black pepper and a flaky finishing salt sharpen every flavor in the dish.
How to Make Mexican Green Spaghetti?
- Roast the poblanos: Char 4 poblanos over an open flame or under a broiler for 8–10 minutes, turning every 2 minutes until skins blacken and blister evenly.
- Steam and peel: Place charred peppers in a bowl, cover with a plate, and steam 10 minutes until skins loosen; peel, then remove stems and seeds.
- Cook the spaghetti: Bring a large pot of salted water to a boil and cook 1 pound spaghetti 8–10 minutes until just al dente.
- Reserve pasta water: Scoop out 1 cup of starchy pasta water before draining — set aside for adjusting sauce consistency.
- Sauté the aromatics: Warm 1 tablespoon olive oil over medium heat and sauté chopped onion and jalapeño 4–5 minutes until soft, fragrant, and translucent.
- Add the garlic: Stir in 4 minced garlic cloves and cook 1 minute more, just until fragrant — do not let it brown.
- Blend the sauce: Transfer onion mixture to a blender with peeled poblanos, spinach, cilantro, sour cream, bouillon, and 2/3 cup milk; blend smooth for 1 full minute.
- Melt the cream cheese: Return sauce to the skillet over low heat and whisk in cubed softened cream cheese until fully melted and velvety, about 3 minutes.
- Season the sauce: Add salt and freshly ground black pepper to taste; thin with reserved pasta water or additional milk if the sauce feels too thick.
- Toss the pasta: Add drained spaghetti to the skillet and toss gently 1–2 minutes until every strand is coated in the bright green sauce.
- Serve immediately: Plate while warm and top with chopped cilantro, crumbled cotija, and pepitas for color and crunch.
Emily’s Expert Tips
- Char the poblanos hard: I let the skins go truly black — that deep char is where the smoky flavor lives. Pale roasting gives a flat, vegetal sauce instead of the rich, earthy one you want.
- Soften the cream cheese fully: I always pull the cream cheese out 30 minutes before I start cooking. Cold cream cheese refuses to melt evenly and leaves stubborn little lumps in an otherwise silky sauce.
- Reserve pasta water: Aunt Anne taught me to scoop out a cup of starchy pasta water before draining. A splash loosens the sauce beautifully and helps it cling to every strand.
- Blend until completely smooth: I run the blender a full minute longer than feels necessary. A velvety, lump-free sauce is what separates a great green spaghetti from a good one.
- Adjust heat with the second pepper: I taste my poblanos before deciding whether to add a serrano or a milder jalapeño. Poblano heat varies pepper to pepper, and tasting first keeps the dish balanced for the table.
Storage Tips
- Refrigerator : Store in an airtight container for up to three days; the sauce thickens as it cools.
- Freezer: Freeze the sauce alone, without the pasta, for up to two months in a sealed container.
- Reheating from the fridge: Warm gently in a skillet with a splash of milk to bring the sauce back to silky.
- Reheating from frozen: Thaw overnight in the fridge, then reheat over low heat, whisking until smooth and creamy.
- Food safety note: Refrigerate leftovers within two hours of cooking to keep the dairy-based sauce fresh and safe.
Variations & Substitutions
- Add shredded chicken: Fold in rotisserie or poached chicken for a protein-rich main, similar to our creamy taco pasta .
- Swap in shrimp: Sauté peeled shrimp three minutes per side and toss into the finished sauce just before serving.
- Make it spicier: Use two serrano peppers or stir in a chipotle in adobo for warm, smoky heat.
- Try a lighter base: Replace cream cheese with Greek yogurt and milk for a tangier, lower-fat version.
- Use a different pasta shape: Penne, fettuccine, or creamy garlic penne pasta shapes hold the sauce beautifully too.
- Go vegetarian-plus: Add roasted corn, black beans, or zucchini for extra texture and color in every bite.
- Brighten the herbs: Stir in fresh parsley or a squeeze of lime juice right before serving for a sharper finish.

What to Serve With Mexican Green Spaghetti?
- Garlic toast or warm bolillos: Crusty bread is perfect for swiping up every last drop of the creamy green sauce.
- A simple Mexican chopped salad: Crisp romaine, tomato, avocado, and lime balance the richness with bright, fresh crunch.
- Mexican street corn pasta salad : A smoky, tangy side that echoes the bold Mexican flavors of the main dish.
- Grilled lime chicken: Smoky, citrus-marinated chicken layers beautifully over the spaghetti for a heartier meal.
- Black beans with cumin: A warm, earthy side dish that rounds out the plate with classic Mexican comfort.
- Charred lime wedges and pickled onions: A squeeze of acid and a tangy bite cut through the creamy sauce perfectly.
Frequently Asked Questions
- Is Mexican Green Spaghetti spicy? Mildly. Poblanos are gentle — the jalapeño adds most of the heat, which you can adjust.
- Can I make this ahead of time? Yes — make the sauce a day ahead, then toss with freshly cooked pasta when ready to serve.
- Can I use canned poblanos? Fresh-roasted poblanos give the best flavor, but canned roasted poblanos work in a pinch.
- Is this recipe vegetarian? Yes, if you use vegetable bouillon instead of chicken bouillon — everything else is already vegetarian.
- Why is my sauce lumpy? The cream cheese wasn’t fully softened. Blend longer or warm the sauce gently while whisking.
- Can I freeze the leftovers? Freeze the sauce alone for up to two months — pasta turns mushy when frozen and thawed.
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Mexican Green Spaghetti
Ingredients
Instructions
Char poblanos over an open flame or under a broiler for 8–10 minutes, turning every 2 minutes until skins blacken evenly on all sides.
Place charred peppers in a bowl, cover with a plate, and steam 10 minutes; peel, then remove stems and seeds.
Bring a large pot of salted water to a boil and cook spaghetti 8–10 minutes until just al dente.
Reserve 1 cup of starchy pasta water, then drain spaghetti.
Warm olive oil in a large skillet over medium heat; sauté onion and jalapeño 4–5 minutes until soft and translucent.
Add minced garlic and cook 1 minute more, just until fragrant.
Transfer onion mixture to a blender with peeled poblanos, spinach, cilantro, sour cream, bouillon, and 2/3 cup milk; blend smooth for 1 full minute.
Return sauce to the skillet over low heat and whisk in softened cream cheese cubes until fully melted, about 3 minutes.
Season with salt and pepper; thin with reserved pasta water or additional milk to reach desired consistency.
Add drained spaghetti and toss gently 1–2 minutes until every strand is coated in the bright green sauce.
Plate immediately and top with chopped cilantro, crumbled cotija, and toasted pepitas.
Notes
Pull cream cheese from the fridge 30 minutes before cooking — proper softening is the key to a lump-free, silky sauce.
For a vegetarian version, use vegetable bouillon in place of chicken bouillon.
Store leftovers in an airtight container in the refrigerator for up to 3 days; reheat gently with a splash of milk to restore the creamy texture.
