01 -
Cube chicken breasts into 1-inch pieces and season evenly with kosher salt, black pepper, and Italian seasoning, tossing gently to coat all pieces.
02 -
Heat 2 tablespoons of olive oil in a large Dutch oven over medium-high heat until shimmering. Add chicken in a single layer without overcrowding and sear 2 minutes per side until golden brown.
03 -
Remove chicken and set aside. Add remaining 1 tablespoon olive oil to the pot, then sauté minced onion for 3 to 4 minutes until translucent and fragrant, stirring occasionally.
04 -
Stir in minced garlic and cook for 30 seconds until fragrant. Pour in marinara sauce, scraping browned bits from the pot, and bring to a gentle simmer.
05 -
Return seared chicken to the sauce, spooning sauce over pieces. Cover and reduce heat to medium-low, cooking 15 to 20 minutes until chicken reaches 165°F internal temperature.
06 -
Stir cooked pasta into the chicken mixture. Add Parmesan and ¼ cup mozzarella cheese, stirring gently over low heat until melted and creamy.
07 -
Sprinkle remaining 1¼ cups shredded mozzarella evenly over the pasta mixture. Cover and remove from heat. Let sit 3 to 5 minutes until cheese melts into a cohesive layer.
08 -
Serve immediately, garnishing each portion with fresh minced basil to enhance aroma and color.