1. Boil water in a large pot and cook the penne pasta according to package instructions. Drain and set aside.

2. In a large skillet, heat some olive oil over medium heat.

3. Add the sweet pepper, green chilies, and plum tomatoes to the skillet. Cook for about 5 minutes or until the vegetables are slightly softened.

4. Add the fresh tomatoes, tomato puree, and canned chopped tomatoes to the skillet. Stir well to combine.

5. Season with salt, pepper, and any other desired spices or herbs.

6. Simmer the sauce for about 15-20 minutes or until it thickens slightly.

7. Add the cooked penne pasta to the skillet and toss well to coat it with the sauce.

8. Serve hot and enjoy!