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Preheat your oven to 375°F. Bring a large pot of salted water to a boil. Add the penne pasta and cook according to package directions until al dente. Drain well and set aside.

While the pasta cooks, melt the butter in a large skillet or Dutch oven over medium heat. Add the diced chicken breast and cook for 5-7 minutes, stirring occasionally, until lightly browned and cooked through. Remove the chicken from the skillet and set aside.

In the same skillet, add the chopped yellow onion and diced carrots. Sauté for 5-7 minutes, until the onion is softened and translucent. Add the minced garlic and cook for another 1 minute until fragrant.

Sprinkle the all-purpose flour over the vegetables and stir constantly for 1 minute to create a roux. Gradually whisk in the chicken broth, ensuring no lumps form. Bring the mixture to a gentle simmer, then whisk in the heavy cream, dried thyme, salt, and black pepper. Continue to simmer for 2-3 minutes, stirring, until the sauce thickens slightly.

Remove the skillet from the heat. Stir in 1 cup of the shredded cheddar cheese and 1/4 cup of the grated Parmesan cheese until melted and smooth. Add the cooked chicken and drained pasta to the sauce, stirring until everything is well coated.

Transfer the pasta mixture to a 9x13 inch baking dish. Sprinkle the remaining 1/2 cup of shredded cheddar cheese and 1/4 cup of grated Parmesan cheese evenly over the top.

Bake for 20-25 minutes, or until the sauce is bubbly and the cheese topping is golden brown and melted. If desired, you can broil for the last 1-2 minutes for extra browning, watching carefully to prevent burning.

Remove from the oven and let rest for 5 minutes before serving. Garnish with fresh chopped parsley.


Preheat your oven to 375°F. Bring a large pot of salted water to a boil. Add the penne pasta and cook according to package directions until al dente. Drain well and set aside.

While the pasta cooks, melt the butter in a large skillet or Dutch oven over medium heat. Add the diced chicken breast and cook for 5-7 minutes, stirring occasionally, until lightly browned and cooked through. Remove the chicken from the skillet and set aside.

In the same skillet, add the chopped yellow onion and diced carrots. Sauté for 5-7 minutes, until the onion is softened and translucent. Add the minced garlic and cook for another 1 minute until fragrant.

Sprinkle the all-purpose flour over the vegetables and stir constantly for 1 minute to create a roux. Gradually whisk in the chicken broth, ensuring no lumps form. Bring the mixture to a gentle simmer, then whisk in the heavy cream, dried thyme, salt, and black pepper. Continue to simmer for 2-3 minutes, stirring, until the sauce thickens slightly.

Remove the skillet from the heat. Stir in 1 cup of the shredded cheddar cheese and 1/4 cup of the grated Parmesan cheese until melted and smooth. Add the cooked chicken and drained pasta to the sauce, stirring until everything is well coated.

Transfer the pasta mixture to a 9x13 inch baking dish. Sprinkle the remaining 1/2 cup of shredded cheddar cheese and 1/4 cup of grated Parmesan cheese evenly over the top.

Bake for 20-25 minutes, or until the sauce is bubbly and the cheese topping is golden brown and melted. If desired, you can broil for the last 1-2 minutes for extra browning, watching carefully to prevent burning.

Remove from the oven and let rest for 5 minutes before serving. Garnish with fresh chopped parsley.
