Creamy Chicken Fajita Pasta Recipe (One-Pot!)

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This creamy chicken fajita pasta recipe is flavorful, colorful, and incredibly easy to make. We’ve got juicy chicken coated in a homemade fajita spice blend, sizzling bell peppers and onions, and fusilli pasta tossed in a cheesy fajita cream sauce that’ll knock your socks off. Everything comes together in one pot in under an hour, making it perfect for busy weeknights when you’re short on time but still want something good.

This one pot chicken fajita pasta is what happens when fajita night meets cozy pasta night. It’s an easy dinner that’s perfect for the whole family – cheesy, full of bold flavor, and because it comes together in one pot, that means less dishes. And we love that! Best part? It tastes even better the next day. Add a little avocado crema on top or serve it with mango habanero salsa and tortilla chips, and you’ve got a restaurant-worthy meal right at home.

Chicken Fajita Pasta

The magic of this recipe is all in the layers of flavor. The chicken gets coated in a homemade fajita spice blend, the peppers and onions cook until sweet and tender, and the sauce gets richness from cream cheese and shredded cheese making every bite beautifully rich. A little hot sauce brings the heat, while lemon juice brightens everything up so the sauce tastes creamy without feeling heavy. It’s truly a family favorite in my household!

For more delicious and easy recipes, make my slow cooker chicken enchiladas and one pot taco rice!

Ingredient Highlights

(full list of ingredients can be found in the recipe card)

Chicken thighs: Boneless, skinless chicken thighs stay tender and soak up flavor that fajita seasoning mix like a dream.
Homemade fajita seasoning: A simple blend of spices gives the chicken, peppers, and sauce that classic fajita flavor without needing a store-bought packet.
Fajita Veggies: a mix of green bell peppers, red bell peppers, yellow bell peppers, and yellow onions (you can also use a red onion if you prefer). They add color, sweetness, and that sizzling fajita-style flavor to the pasta.
Pasta: Short pastas like fusilli and penne pasta work best here because it holds onto the creamy sauce and makes every bite extra cozy but feel free to use a different pasta shape.
Heavy cream and cream cheese: These make the fajita pasta sauce creamy, smooth, and extra cozy without being complicated.
Mexican Shredded Cheese Blend: Cheese melts into the sauce for that rich, creamy finish that pulls the whole dish together. You can also use parmesan cheese in its place.
Lemon juice and Hot Sauce: A little lemon juice brightens everything up, while hot sauce adds just enough heat to balance the creamy sauce.

How to Make Chicken Fajita Pasta

Step 1: Season and cook the chicken. Combine the homemade fajita seasoning in a small bowl, then use half of it to coat the bite-sized pieces. Cook the chicken in a large skillet until browned and cooked through, then remove it from the pan and set aside.

sauteed bell peppers and onions in a skillet.

Step 2: Cook the pasta and vegetables. Boil the pasta in a large pot until al dente, then drain and set aside. In the same skillet, cook the bell peppers and onions until they’re slightly softened and full of flavor.

Step 3: Build the creamy fajita sauce. Melt butter in the skillet, then cook the garlic until fragrant. Stir in the tomato paste, chicken bouillon paste, Sazón, flour, and remaining seasoning until a thick paste forms. Slowly pour in the chicken broth, then add heavy cream and cream cheese and stir until smooth.

chicken, bell peppers, onions, and cooked pasta tossed in the fajita cream sauce.

Step 4: Bring everything together. Let the sauce simmer until slightly thickened, then stir in lemon juice, hot sauce, and shredded cheese. Add the cooked chicken, peppers, onions, and pasta back to the pan and toss until everything is coated in that cheesy fajita cream sauce. Garnish with cilantro or chopped green onion. Store leftovers in an airtight container in the fridge for up to 3-4 days.

Expert Tips for Making Chicken Fajita Pasta

Cook the pasta just until al dente. The pasta will continue to soften once it’s tossed in the warm sauce, so you don’t want to overcook it.
Let the chicken brown before stirring too much. Give it a few minutes in the pan so it can develop color and flavor before moving it around.
Cook the peppers and onions until slightly softened. You want them tender but not mushy, so they still give the pasta that fajita-style bite.
Add the cheese over low heat. This helps the cheese melt smoothly into the sauce instead of turning grainy.
Use a splash of broth or cream to loosen leftovers. The pasta will thicken as it sits, so add a little bit of liquid when reheating to bring the sauce back to life.

Recipe FAQs

Can I use skinless chicken breast instead of chicken thighs?

Yes, you can use chicken breast instead of chicken thighs in this chicken fajita pasta. Just be careful not to overcook it since chicken breast is leaner and can dry out faster.

Is chicken fajita pasta spicy?

This recipe has a little kick from the hot sauce and fajita seasoning, but it’s not overly spicy. For a milder version, reduce or skip the hot sauce. For more heat, add extra hot sauce, cayenne pepper, jalapeños, or crushed red pepper flakes.

Can I make chicken fajita pasta ahead of time?

Yes, this recipe reheats really well, which makes it great for meal prep. For the best texture, cook the pasta just until al dente so it doesn’t get too soft when reheated.

Can I use store-bought fajita seasoning?

Yes! I love using a homemade fajita spice blend because you can control the flavor and salt level, but store-bought fajita seasoning works too. If using a packet, taste the sauce before adding extra salt since many seasoning packets are already salty.