
If you’re craving a meal that combines the creamy comfort of mac and cheese with the zesty, savory flavors of fajitas, then this Chicken Fajita Mac and Cheese Skillet is exactly what you need. It’s a one-pan wonder loaded with tender chicken, sautéed peppers, and onions, all brought together by a luscious cheddar cheese sauce. Perfect for busy weeknights or casual gatherings, this dish offers a vibrant twist on two classic favorites. Ready in under 40 minutes, it’s a guaranteed crowd-pleaser that will have everyone asking for seconds.
Why It’s Crowd-Pleasing
This skillet recipe hits all the right notes. The creamy mac and cheese provides a familiar, comforting base, while the bold spices from the taco seasoning and the colorful bell peppers add exciting layers of flavor and texture. It’s both hearty and fresh, making it suitable for family dinners or entertaining friends. Plus, the dish comes together in one pan, which means less cleanup and more time to enjoy your meal. With the perfect balance of cheesy indulgence and fajita-inspired zest, this recipe satisfies picky eaters and adventurous palates alike.
Ingredient Breakdown
- 8 ounces elbow macaroni: The classic pasta shape that holds onto the cheese sauce beautifully.
- 1 tablespoon olive oil: Used for sautéing the chicken and vegetables, adding subtle fruitiness.
- 1 pound chicken breast, diced: The protein base, tender and juicy after being seasoned and cooked.
- 1 tablespoon taco seasoning: Brings the fajita flavor to life with a blend of spices like cumin, paprika, and chili powder.
- 1 red bell pepper, sliced: Adds sweetness and vibrant color.
- 1 green bell pepper, sliced: Provides a slightly bitter crunch that balances the dish.
- 1 small onion, diced: Adds aromatic depth when sautéed with the peppers.
- 2 cups shredded cheddar cheese: The creamy, melty star of the sauce.
- 1 cup milk: Helps create a smooth, rich cheese sauce.
- 1 cup chicken broth: Adds moisture and subtle savory notes.
- Salt and pepper to taste: Essential for seasoning and enhancing all the flavors.
- 2 green onions, sliced (for garnish): Adds freshness and a mild oniony bite as a finishing touch.
What You’ll Need (Gear)
- Large skillet or sauté pan: For cooking the chicken, vegetables, and pasta all in one vessel.
- Measuring cups and spoons: To ensure the right proportions of ingredients.
- Wooden spoon or spatula: To stir and combine the ingredients without scratching your pan.
- Knife and cutting board: For chopping the chicken, peppers, onions, and green onions.
- Colander: To drain the macaroni after boiling.
Stepwise Method: Chicken Fajita Mac and Cheese Skillet
Step 1: Cook the Pasta
Bring a large pot of salted water to a boil. Add the elbow macaroni and cook according to package instructions until al dente (usually about 8 minutes). Drain the pasta in a colander and set aside.
Step 2: Sauté the Chicken
Heat the olive oil in a large skillet over medium-high heat. Add the diced chicken breast and sprinkle with the taco seasoning. Cook, stirring occasionally, until the chicken is fully cooked and lightly browned, about 5-7 minutes.
Step 3: Cook the Vegetables
Add the sliced red and green bell peppers along with the diced onion to the skillet. Sauté until the vegetables are tender but still retain some crunch, about 4-5 minutes.
Step 4: Prepare the Cheese Sauce
Pour in the chicken broth and milk, stirring to combine. Bring the mixture to a gentle simmer, then gradually add the shredded cheddar cheese, stirring constantly until the cheese melts into a smooth sauce. Season with salt and pepper to taste.
Step 5: Combine Pasta and Sauce
Add the cooked macaroni to the skillet, stirring well to coat the pasta evenly with the cheese sauce and fajita mixture. Allow everything to heat through for a couple of minutes so the flavors meld together.
Step 6: Garnish and Serve
Remove the skillet from heat and sprinkle the sliced green onions on top for a fresh pop of color and flavor. Serve immediately while warm and gooey.
Season-by-Season Upgrades
- Spring: Add fresh diced tomatoes or a handful of baby spinach for added brightness and nutrition.
- Summer: Incorporate grilled corn kernels and a squeeze of fresh lime juice for a smoky, tangy twist.
- Fall: Mix in roasted butternut squash cubes or swap cheddar for smoked gouda to add warmth and depth.
- Winter: Stir in sautéed mushrooms or a pinch of cayenne pepper for a cozy, spicy kick.
Steer Clear of These
- Avoid overcooking the pasta; mushy macaroni won’t hold up well in the skillet and will result in a less satisfying texture.
- Don’t skip seasoning the chicken properly — the taco seasoning is key to achieving that authentic fajita flavor profile.
- Refrain from using pre-shredded cheese that contains anti-caking agents, as it can impact the creaminess of the sauce.
- Avoid high heat when melting the cheese; slow and steady heat prevents the sauce from separating or becoming grainy.
Keep It Fresh: Storage Guide
Store any leftovers in an airtight container in the refrigerator for up to three days. When reheating, add a splash of milk or broth to loosen the sauce and warm gently on the stove or in the microwave to maintain creaminess. This dish doesn’t freeze very well, as the cheese sauce can separate upon thawing, so it’s best enjoyed fresh or within a few days.
Handy Q&A
Can I use a different type of pasta?
Absolutely! While elbow macaroni works perfectly for this Chicken Fajita Mac and Cheese Skillet, you can swap in shells, rotini, or penne—just be sure to adjust the cooking time according to the pasta’s instructions.
Is there a way to make this recipe spicier?
Yes! Add a pinch of cayenne pepper or chopped jalapeños when sautéing the peppers and onions. Alternatively, top the finished dish with hot sauce or a drizzle of your favorite spicy salsa for an extra kick.
Can I substitute the chicken with another protein?
Definitely. Shrimp, beef strips, or even plant-based chicken alternatives work well. Just adjust the cooking times accordingly to ensure your protein is cooked through and tender.
How can I make the cheese sauce extra creamy?
For a richer sauce, you can add a tablespoon of cream cheese or a splash of heavy cream along with the cheddar. If you want to try a homemade Pourable Nacho Cheese Sauce, it’s a fantastic way to add a silky texture and robust flavor.
Because You Liked This
- Try the vibrant flavors of One Pan Tex Mex Chicken And Rice for another easy and flavorful weeknight meal.
- If you love cheesy dishes, check out this creamy homemade Pourable Nacho Cheese Sauce recipe to complement your snacks and meals.
- For a vegetarian twist, experiment with roasted vegetables in your mac and cheese base for a hearty, satisfying option.
- Don’t miss out on simple skillet meals that combine minimal prep with maximum flavor—perfect for busy lifestyles.
Hungry for More?
If you enjoyed this Chicken Fajita Mac and Cheese Skillet, keep exploring recipes that bring bold, comforting flavors to your table with ease. From skillet dinners to cheesy favorites, there’s always a new way to enjoy classic dishes with a twist. Whether you want to try different proteins, experiment with spices, or add seasonal veggies, this recipe is your gateway to delicious, hassle-free cooking. Gather your ingredients, grab your skillet, and get ready to create meals that everyone will love, night after night.
This dish is a wonderful example of how simple ingredients can come together to create something extraordinary. It’s not just a meal; it’s a celebration of flavor, texture, and ease. Enjoy every cheesy, spicy bite!
Share on Pinterest

Chicken Fajita Mac and Cheese Skillet
Ingredients
- 8 ounces elbow macaroni
- 1 tablespoon olive oil for sautéing
- 1 pound chicken breast diced
- 1 tablespoon taco seasoning
- 1 red bell pepper sliced
- 1 green bell pepper sliced
- 1 small onion diced
- 2 cups shredded cheddar cheese
- 1 cup milk
- 1 cup chicken broth
- salt and pepper to taste
- 2 green onions sliced, for garnish
Instructions
Stepwise Method: Chicken Fajita Mac and Cheese Skillet
- Bring a large pot of salted water to a boil. Add the elbow macaroni and cook according to package instructions until al dente (about 8 minutes). Drain the pasta in a colander and set aside.
- Heat the olive oil in a large skillet over medium-high heat. Add the diced chicken breast and sprinkle with the taco seasoning. Cook, stirring occasionally, until the chicken is fully cooked and lightly browned, about 5-7 minutes.
- Add the sliced red and green bell peppers along with the diced onion to the skillet. Sauté until the vegetables are tender but still retain some crunch, about 4-5 minutes.
- Pour in the chicken broth and milk, stirring to combine. Bring the mixture to a gentle simmer, then gradually add the shredded cheddar cheese, stirring constantly until the cheese melts into a smooth sauce. Season with salt and pepper to taste.
- Add the cooked macaroni to the skillet, stirring well to coat the pasta evenly with the cheese sauce and fajita mixture. Allow everything to heat through for a couple of minutes so the flavors meld together.
- Remove the skillet from heat and sprinkle the sliced green onions on top for a fresh pop of color and flavor. Serve immediately while warm and gooey.
Equipment
- Large skillet or sauté pan
- Measuring cups and spoons
- Wooden Spoon or Spatula
- Knife and cutting board
- Colander
Notes
- For extra creaminess, add a tablespoon of cream cheese or a splash of heavy cream to the cheese sauce.
- To make the dish spicier, include a pinch of cayenne pepper or chopped jalapeños when cooking the vegetables.
- Store leftovers in an airtight container in the refrigerator for up to 3 days; reheat gently with a splash of milk or broth to maintain creaminess.