White Chicken Enchilada Pasta
This is the kind of weeknight dinner I make when I want comfort without fuss. It combines tender cooked chicken, creamy white enchilada sauce, and melty Monterey Jack over al dente penne. The casserole comes together quickly and bakes into a bubbly, cheesy top that always disappears fast at the table.
I like this recipe because it’s forgiving: swap in leftover rotisserie chicken or quick-pan seared breasts, and it still sings. The sauce is a simple roux-based white sauce, brightened with green chiles and sour cream for tang. No canned red enchilada sauce required—this version is softer, creamier, and very approachable.
Below you’ll find the exact ingredient list and step-by-step directions. I also include troubleshooting tips, gear recommendations, and smart swaps so you can tailor the dish to what’s in your pantry or to dietary needs.
What You’ll Need
Ingredients
- 12-oz penne pasta — the shape holds the sauce and shreds of chicken well; cook to al dente.
- 2 cups chopped cooked chicken — leftover or rotisserie chicken works perfectly; chop to bite-size pieces.
- 1 (4-oz) can green chiles — drained; they add a mild, smoky heat and small bursts of flavor.
- 2 cups shredded Monterey Jack cheese — provides a creamy, melty-top finish; reserve half for the topping.
- 3 Tbsp butter — used to make the roux; gives the sauce a rich base.
- 3 Tbsp all-purpose flour — combines with the butter to thicken the sauce into a smooth béchamel-style base.
- ½ tsp onion powder — offers gentle savory depth without chopping fresh onion.
- ½ tsp garlic powder — background garlic flavor that heats evenly into the sauce.
- 1 tsp southwestern seasoning or taco seasoning — brings the classic enchilada notes; use your favorite blend.
- 2 cups chicken broth — thins and flavors the white sauce; low-sodium is fine if you monitor salt.
- 1 cup sour cream — stirred in off the heat for creaminess and slight tang that brightens the sauce.
Directions: White Chicken Enchilada Pasta
- Preheat the oven to 350°F and spray a 9×13-inch baking dish with cooking spray.
- Cook the 12-oz penne pasta according to package directions until al dente. Drain and set aside.
- In a small saucepan over medium heat, melt the 3 Tbsp butter. Whisk in the 3 Tbsp all-purpose flour and cook, whisking constantly, for 1 minute to form a roux.
- Gradually whisk in the 2 cups chicken broth until smooth. Add the ½ tsp onion powder, ½ tsp garlic powder, and 1 tsp southwestern (or taco) seasoning. Continue cooking and whisking until the sauce thickens and coats the back of a spoon (about 2–4 minutes).
- Remove the saucepan from the heat and stir in the 1 cup sour cream and the contents of the 1 (4-oz) can green chiles (drained).
- In a large bowl, combine the drained pasta, the sauce, the 2 cups chopped cooked chicken, and half of the 2 cups shredded Monterey Jack cheese. Toss gently to combine.
- Pour the mixture into the prepared 9×13 pan and spread evenly. Sprinkle the remaining cheese over the top.
- Bake uncovered for 25–30 minutes, until the casserole is bubbly and the cheese is melted. Let stand a few minutes before serving.
What Makes This Recipe Special
It’s the balance of creamy and bright. The sour cream cuts through the richness of the béchamel-style sauce and the cheese, keeping each bite lively rather than cloying. Green chiles are the understated hero — they add a subtle heat and a vegetal note that makes the dish unmistakably enchilada-inspired without leaning on tomato-based sauce.
Another plus is the texture: penne traps sauce, chicken, and little pockets of melted cheese. The top bakes into a slightly golden, gooey layer that contrasts nicely with the soft pasta underneath. And because the sauce comes together on the stovetop, you can assemble this quickly and bake while you set the table or make a simple side salad.
Allergy-Friendly Substitutes
- Dairy-free: Swap sour cream for a dairy-free cultured sour cream alternative and use a dairy-free shredded cheese. Use a dairy-free butter substitute to make the roux—be mindful that thickness may vary.
- Gluten-free: Use gluten-free penne and substitute the all-purpose flour with a 1:1 gluten-free baking flour or a cornstarch slurry (use about 2 Tbsp cornstarch mixed with cold broth, whisked in gradually to thicken).
- Low-sodium: Choose low-sodium chicken broth and lower-salt cheese. Taste the sauce before adding any table salt; the seasoning blend can add salt as well.
- Chicken-free: Replace the chicken with roasted vegetables like cauliflower and sweet potato for a hearty vegetarian version, or use shredded rotisserie turkey if you prefer a different protein.
Gear Up: What to Grab
Essentials
- 9×13-inch baking dish — for even baking and the right depth.
- Large pot — to cook the pasta.
- Small saucepan — for making the roux and sauce.
- Large mixing bowl — to toss pasta, sauce, chicken, and cheese before transferring to the pan.
- Wooden spoon or spatula and a whisk — whisk for the roux and sauce; spoon or spatula for folding the pasta mixture.
Nice-to-have
- Cheese grater — for freshly shredded Monterey Jack; it melts better than pre-shredded varieties.
- Instant-read thermometer — to check that the casserole is hot and bubbly in the center (internal temperature around 165°F for reheated dishes).
Things That Go Wrong
Underbaked center: If the casserole is bubbly at the edges but still cooler in the middle, it may need a few more minutes in the oven. Cover the dish loosely with foil to prevent over-browning and bake in 5-minute increments until hot through.
Watery sauce: If the sauce seems thin after mixing with pasta, it may be because the pasta was overcooked and released too much starch or because the sauce needed more reduction. For next time, cook pasta to al dente and drain thoroughly. If it happens at assembly, return the mixture to a low burner and simmer briefly while stirring to thicken, then transfer back to the pan and bake.
Cheese won’t melt smoothly: Pre-shredded cheeses often include anti-caking agents that can inhibit melting. Use freshly shredded Monterey Jack when possible. If the top browns too fast before the interior is hot, cover loosely with foil.
Dietary Swaps & Alternatives
Make it lighter: Reduce the cheese by one-third and use plain Greek yogurt in place of some or all of the sour cream for the tang without as much fat.
Make it vegetarian: Omit the chicken and bulk up with black beans and corn, or roast a medley of peppers, zucchini, and mushrooms. Add a squeeze of lime and fresh cilantro at the end for brightness.
Spice it up: If you want more heat, add a diced jalapeño to the sauce step or a pinch of cayenne when you add the southwestern seasoning. For smoky depth, a teaspoon of smoked paprika blends nicely with the existing spices.
Author’s Commentary
I first layered this dish when I had leftover rotisserie chicken and a fridge full of staples. The blanc-style enchilada approach felt like a natural shortcut; the green chiles make the whole thing feel authentic without relying on a can of red sauce. I often double the recipe for a potluck — it travels well and reheats like a dream.
One habit I keep: shred my own cheese. It takes two extra minutes and the payoff is worth it. Also, if you want a slightly crisper top, broil for 1–2 minutes at the very end, watching carefully so it doesn’t burn.
Meal Prep & Storage Notes
Make-ahead: Assemble the casserole up to the point of baking, cover tightly, and refrigerate for up to 24 hours. Increase the bake time by about 10–15 minutes if baking from cold. Let the dish sit at room temperature for 15–20 minutes before baking to promote even heating.
Storage: Leftovers keep well in an airtight container in the refrigerator for 3–4 days. Reheat in a 350°F oven until warmed through, or microwave individual servings until hot.
Freezing: Fully cooled, baked casserole can be wrapped tightly and frozen for up to 2 months. Thaw overnight in the refrigerator before reheating. Reheat covered at 350°F until steaming in the center; uncover for the last 10 minutes to refresh the top.
FAQ
Can I use other pasta shapes?
Yes. Rigatoni, ziti, or rotini will work similarly because they hold sauce well. Adjust cooking time per the package so it’s al dente.
Do I have to cook the chicken first?
Yes, the recipe calls for chopped cooked chicken. Use leftover, rotisserie, or quickly poached breasts. Raw chicken won’t finish properly in the bake time.
Can I make this spicier?
Absolutely. Add diced jalapeño in step 5 or increase the southwestern seasoning. A dash of hot sauce stirred into the sauce also works.
What if I don’t have sour cream?
Plain Greek yogurt is an easy swap for tang and creaminess. Add it off heat just like the sour cream to avoid breaking the texture.
Let’s Eat
Serve this with a crisp green salad or a simple slaw to balance the richness. A squeeze of lime and a handful of chopped cilantro on top brightens each serving and makes it feel fresh. Watch plates clear quickly—this one’s a family favorite for good reason.
If you try it, tell me how you adapted it. Was it the jalapeño kick, the roasted veggies, or the time you used leftover turkey? Small tweaks make this recipe your own without losing what makes it comforting and reliable.
White Chicken Enchilada Pasta
Ingredients
Equipment
Method
- Preheat the oven to 350°F and spray a 9×13-inch baking dish with cooking spray.
- Cook the 12-oz penne pasta according to package directions until al dente. Drain and set aside.
- In a small saucepan over medium heat, melt the 3 Tbsp butter. Whisk in the 3 Tbsp all-purpose flour and cook, whisking constantly, for 1 minute to form a roux.
- Gradually whisk in the 2 cups chicken broth until smooth. Add the ½ tsp onion powder, ½ tsp garlic powder, and 1 tsp southwestern (or taco) seasoning. Continue cooking and whisking until the sauce thickens and coats the back of a spoon (about 2–4 minutes).
- Remove the saucepan from the heat and stir in the 1 cup sour cream and the contents of the 1 (4-oz) can green chiles (drained).
- In a large bowl, combine the drained pasta, the sauce, the 2 cups chopped cooked chicken, and half of the 2 cups shredded Monterey Jack cheese. Toss gently to combine.
- Pour the mixture into the prepared 9×13 pan and spread evenly. Sprinkle the remaining cheese over the top.
- Bake uncovered for 25–30 minutes, until the casserole is bubbly and the cheese is melted. Let stand a few minutes before serving.
Notes
I used rotisserie chicken for the cooked chicken in this recipe. You will need about half a chicken for this recipe.
You can use low-fat sour cream. I don’t suggest fat-free.
I used Monterey Jack cheese. I’ve also used Pepper Jack Cheese. You can use any cheese you prefer.
If you want a spicer dish, swap the diced green chiles for a can of diced jalapeños.
You can assemble the casserole ahead of time and refrigerate it overnight. You may need to add a few minutes to the cooking time if baking straight from the refrigerator.
You can assemble the casserole and freeze for a quick meal later. To bake the casserole after freezing, thaw completely and bake as directed below.
You can also freeze the casserole after baking. To reheat, partially thaw. Cover the pan with aluminum foil. Bake at 350ºF for 30 to 40 minutes, until warm.
