Learned this genius weeknight dinner hack from my sister and with just 4 ingredients it is a total lifesaver

This oven baked 4-ingredients creamy chicken fajita pasta is exactly the kind of weeknight hack my sister swears by: everything goes onto a foil-lined sheet pan, the sauce is built right in, and the pasta cooks in the same pan as the chicken and peppers. It borrows its flavor profile from Tex-Mex fajitas—smoky, creamy, and a little tangy—without asking you to juggle a dozen spices. If you can stir and spread, you can make this, and it’s the sort of dish that quietly becomes a lifesaver on busy evenings.

Serve this creamy chicken fajita pasta straight from the foil-lined sheet pan with a green salad dressed in lime or a simple slaw to cut through the richness. A side of warm tortillas or crusty bread is nice for scooping up extra sauce. For a bit more fajita flair, offer lime wedges, sliced green onions, and a sprinkle of extra shredded cheese at the table so everyone can customize their portion.

Servings: 4

8 ounces dry penne pasta

Preheat your oven to 400°F (200°C). Line a large rimmed baking sheet with aluminum foil, making sure the foil comes up the sides to catch all the liquid and sauce.

Spread the dry penne pasta evenly over the foil-lined baking sheet in a single layer or as close to it as you can manage.

Scatter the thinly sliced chicken breast strips evenly over the pasta, then add the sliced red bell peppers on top. Try to distribute everything so each area of the pan has some pasta, chicken, and pepper.

In a large measuring cup or bowl, whisk together the creamy fajita (or Southwest-style) cooking sauce with 1 cup of water until smooth and pourable. This extra water helps the pasta cook through in the oven.

Pour the sauce mixture evenly over the pasta, chicken, and peppers. Use a spatula or tongs to gently toss and coat everything, making sure the pasta is moistened and there are no completely dry patches. Spread back into an even layer.

Cover the entire baking sheet tightly with a second layer of foil, crimping the edges all around to seal in the steam. This is what allows the dry pasta to cook through without boiling it first.

Bake on the middle rack for 30 minutes. Carefully remove the top foil (watch for hot steam), then stir everything well, scraping up any bits that may have stuck to the foil.

Return the pan to the oven, uncovered, and bake for another 10–15 minutes, stirring once more halfway through, until the pasta is tender, the chicken is cooked through, and the sauce has thickened into a creamy coating.

Let the pasta rest on the counter for 5 minutes to settle and thicken slightly, then serve straight from the pan. If you like, garnish with a squeeze of lime or a sprinkle of chopped cilantro, though it’s delicious as-is with just the four base ingredients.

If you can stretch beyond four ingredients, a handful of shredded cheddar or Monterey Jack over the top for the last 5 minutes of baking gives you a bubbly, gratinéed finish. Swap the red bell peppers for a mix of red, yellow, and green for more color, or add a sliced red onion for extra fajita character. Boneless, skinless chicken thighs work just as well as breasts; they’re a bit more forgiving if you tend to overbake. For a spicier version, use a chipotle or spicy taco-style creamy sauce, or stir a spoonful of canned diced green chiles into the jarred sauce before baking. If you prefer a lighter dish, look for a reduced-fat creamy cooking sauce and increase the water by a splash if the pasta seems dry as it bakes. Leftovers reheat nicely in a covered skillet over low heat with a tablespoon or two of water to loosen the sauce back to a creamy consistency.