Mexican Green Spaghetti is one of those creamy pasta dinners that feels familiar but still gives the table something different. Roasted poblano peppers bring a smoky green chile flavor, while spinach, cilantro, sour cream, milk, and cream cheese blend into a smooth sauce that coats the spaghetti without feeling complicated. I like this recipe for family dinners, potluck-style sides, or meatless meals when you want something cozy with a little brightness. The poblano flavor stays gentle once the peppers are roasted and peeled, and you can control the heat with jalapeño or serrano. It is also flexible enough to serve as the main dish or next to grilled chicken, beans, shrimp, or simple roasted vegetables.

Why You’ll Love This Mexican Green Spaghetti

This creamy green pasta is practical, flavorful, and easy to adjust for your table. Here’s why:

• Creamy Poblano Flavor: Roasted poblano peppers give the sauce a smoky green chile taste without making the whole dish too spicy for family-style serving.
• Simple Pasta Dinner: Spaghetti makes the dish familiar, while the blended green sauce gives it a fresh twist for weeknights or casual gatherings.
• Flexible Heat Level: Use jalapeño for mild warmth or serrano for a stronger kick, and remove the seeds to keep the sauce balanced.
• Good for Groups: The creamy sauce stretches well over a full pound of pasta, making it a helpful option for easy group food ideas.
• Meatless-Friendly: This works well for Dishes For Lent or simple meatless dinners, especially with beans, salad, or roasted vegetables on the side.

Ingredients You’ll Need

• Poblano peppers (4 roasted): Roast them until blistered, then peel and seed them so the sauce turns smooth with smoky flavor.
• Dry spaghetti (1 pound): Cook it just until al dente so it can hold the creamy chile verde sauce without becoming too soft.
• Olive oil (1 tablespoon): Use this to soften the onion, pepper, and garlic before they go into the blender.
• Small onion (about 1/4 cup chopped): A little onion gives the sauce a savory base without overpowering the poblano flavor.
• Jalapeño or serrano pepper (1 chopped): Choose jalapeño for gentler heat or serrano if you want a bolder green chile flavor.
• Garlic cloves (4 minced): Fresh garlic adds depth to the sauce and works well with the roasted poblanos.
• Spinach leaves (1 cup): Spinach deepens the green color and blends smoothly into the creamy sauce.
• Cilantro (1 small bunch): Cilantro brings brightness and helps give this Spaghetti Verde Mexicano its fresh finish.
• Sour cream or crema Mexicana (8 ounces): This makes the sauce tangy and creamy, with crema giving a slightly richer Mexican-style finish.
• Bouillon granules or cube (1 teaspoon or 1 cube): Chicken or vegetable bouillon seasons the sauce and helps round out the chile flavor.
• Milk or half and half (2/3 to 1 cup): Start with less and add more as needed to blend the sauce to a pourable texture.
• Cream cheese (8 ounces softened): Softened cubes melt more smoothly into the sauce and make the pasta rich and velvety.
• Salt and ground black pepper (to taste): Season after blending and again after tossing with pasta so the final dish tastes balanced.
• Optional garnishes: Chopped cilantro, cotija, queso fresco, or pepitas add color, saltiness, and texture at the end.

Before You Start

• Roast First: Roast the poblanos before cooking the pasta so they have time to steam, loosen, and peel easily.
• Save Pasta Water: Reserve at least 1 cup of starchy pasta water before draining in case the sauce needs loosening.
• Use a Blender: A regular blender gives the smoothest sauce, but an immersion blender can work if the peppers are chopped well.
• Soften Cream Cheese: Let the cream cheese sit at room temperature so it blends and melts without leaving small white pieces.

How to Make Mexican Green Spaghetti

• Step 1 – Roast Poblanos: Char poblanos over a flame, under a broiler, or in a hot oven until blistered on all sides.
• Step 2 – Steam and Peel: Place roasted poblanos in a covered bowl for 10 minutes, then peel, seed, and roughly chop them.
• Step 3 – Cook Spaghetti: Boil spaghetti in salted water until al dente, then drain and reserve about 1 cup pasta water.
• Step 4 – Sauté Aromatics: Heat olive oil in a skillet and cook onion, jalapeño or serrano, and garlic until softened and fragrant.
• Step 5 – Blend Sauce: Blend poblanos, sautéed aromatics, spinach, cilantro, sour cream, bouillon, and 2/3 cup milk until smooth.
• Step 6 – Warm the Sauce: Pour the green sauce into a large pan, add cream cheese cubes, and stir over low heat until creamy.
• Step 7 – Toss Pasta: Add spaghetti to the sauce and toss until coated, adding pasta water or extra milk as needed.
• Step 8 – Finish and Serve: Season with salt and pepper, then garnish with cilantro, cotija, queso fresco, or pepitas if using.

How to Know When Mexican Green Spaghetti Is Done

• Pasta Texture: The spaghetti should be tender but still have a little bite before it is tossed with the sauce.
• Sauce Texture: The sauce should look smooth, creamy, and pourable, not separated or overly thick.
• Coating Cue: Each strand of spaghetti should be lightly coated in green sauce without a watery pool in the pan.
• Flavor Balance: The final taste should be creamy, lightly smoky, salted enough, and bright from the cilantro.

Tips to Make It Easier

• Peel While Warm: I find the poblano skins slip off more easily while the peppers are still warm from steaming.
• Do Not Rinse Peppers: Wipe off the charred skins instead of rinsing so you keep more roasted flavor in the sauce.
• Start With Less Milk: Add 2/3 cup first, then thin the sauce only after the cream cheese melts.
• Blend in Batches: If your blender is small, blend the sauce in two parts so it stays smooth and safe.
• Season at the End: I wait to do the final salt check after the pasta is tossed because bouillon and cheese add salt.
• Keep Heat Low: Warm the creamy sauce gently so the sour cream and cream cheese stay smooth.

How to Store and Reheat

• Fridge: Store cooled Mexican Green Spaghetti in an airtight container for up to 3 to 4 days.
• Freezer: Freeze portions for up to 2 months, though the creamy sauce may need stirring after reheating.
• Reheat: Warm on the stove over low heat with a splash of milk until creamy again.
• Microwave: Reheat in 45-second intervals, stirring between each round so the sauce warms evenly.
• Food safety: Refrigerate leftovers within 2 hours and reheat until steaming hot before serving.
• Make Ahead: Blend the green sauce 1 day ahead and cook fresh spaghetti when ready to serve.

Easy Swaps & Add-Ins

• Use Crema: Swap sour cream for crema Mexicana if you want a silkier and slightly milder sauce.
• Add Chicken: Stir in shredded chicken or grilled chicken strips to turn this into a fuller dinner.
• Try Shrimp: Sautéed shrimp works well with the creamy poblano sauce and keeps the meal bright.
• Use Different Pasta: Fettuccine, linguine, or short pasta can replace spaghetti if that is what you have.
• Make It Milder: Skip the jalapeño or serrano and rely on roasted poblanos for gentle flavor.
• Add Crunch: Sprinkle pepitas on top right before serving for a nutty finish and extra texture.

What to Serve With Mexican Green Spaghetti

• Grilled Chicken: A simple grilled chicken breast makes the creamy pasta feel like a full family dinner.
• Black Beans: Beans add protein and make the meal more filling without much extra work.
• Roasted Corn: Sweet corn pairs well with poblano flavor and adds a bright side dish.
• Avocado Salad: A cool avocado salad balances the warm creamy sauce with freshness.
• Garlic Bread: Garlic bread is a familiar side that helps scoop up any extra green sauce.
• Queso Fresco: Serve extra crumbled cheese at the table for a salty finish.

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