Creating the Easy One Pan Italian Chicken In Tomato Sauce is straightforward with these easy steps:

1. Heat the Pan: In a large skillet, add the olive oil and heat over medium heat.
2. Sear the Chicken: Season the chicken thighs with salt and pepper. Place them skin-side down in the skillet. Sear for about 5-7 minutes until golden brown. Flip and cook for another 5 minutes, then remove from the pan and set aside.
3. Sauté Onions and Garlic: In the same pan, add the chopped onion and sauté for about 3-4 minutes until softened. Add the minced garlic and cook for an additional minute until fragrant.
4. Add Tomatoes and Seasonings: Stir in the crushed tomatoes, oregano, basil, and red pepper flakes. Mix well to combine.
5. Combine Chicken and Sauce: Return the seared chicken to the pan, skin-side up. Spoon the sauce over the chicken.
6. Simmer: Reduce the heat to low and cover the skillet. Let it simmer for 25-30 minutes until the chicken is cooked through and tender.
7. Serve: Once done, garnish with fresh basil leaves and sprinkle grated Parmesan cheese on top before serving.

Following these steps will yield a beautifully cooked dish that’s sure to impress!