01 -
In a big pot of salty, bubbling water, cook the penne until it's just tender. Check the package for timing. Drain it, then put it aside.
02 -
As the pasta cooks, sprinkle Cajun seasoning over the chicken pieces. Heat up a skillet with 1 tbsp of olive oil over medium-high heat. Cook the chicken until it's golden and done (about 5-7 minutes). Move it to a plate.
03 -
In the same pan, pour in the remaining 1 tbsp of olive oil. Toss in the onion, peppers, garlic, and jalapeños. Stir them around until they're soft but still a bit crunchy, about 5 minutes. Then take them out.
04 -
Use the same pan and melt the butter over medium heat. Stir in the flour and let it cook for a minute or two. Slowly pour in the milk while whisking. Keep stirring so it stays smooth.
05 -
Let the sauce simmer until it thickens, which takes 2-3 minutes. Add in the Parmesan, salt, and pepper. Stir until the cheese is melted and silky.
06 -
Toss the drained pasta, cooked chicken, and sautéed veggies into the sauce. Gently mix until every bite is covered in that creamy goodness.
07 -
Dish it out warm and sprinkle fresh parsley on top. Taste all the spicy, cheesy flavors together!