Creating One Pot Chicken Margherita Pasta is a simple and rewarding process. Follow these steps to make your dish:

1. Heat Olive Oil: In a large pot, heat the olive oil over medium heat.
2. Cook Chicken: Add the diced chicken breast to the pot. Season with salt, pepper, and Italian seasoning. Cook for about 5-6 minutes or until the chicken is browned and cooked through.
3. Add Garlic and Tomatoes: Stir in the minced garlic and halved cherry tomatoes. Cook for an additional 2-3 minutes until the tomatoes begin to soften.
4. Add Chicken Broth: Pour in the chicken broth and bring the mixture to a boil.
5. Add Pasta: Once boiling, add the penne pasta to the pot. Stir well to combine.
6. Cook Pasta: Reduce heat to low and cover the pot. Let it simmer for about 15 minutes or until the pasta is al dente, stirring occasionally.
7. Incorporate Cheese and Basil: Once the pasta is cooked, remove the pot from heat. Stir in the shredded mozzarella cheese and chopped basil until the cheese is melted and creamy.
8. Adjust Seasoning: Taste and adjust the seasoning if necessary. Add more salt or pepper if you prefer.
9. Serve: The dish can be served immediately, garnished with additional basil if desired.

These straightforward steps will guide you in preparing this amazing pasta dish with ease.