[USER (data scientist)]:Great, now that the dataset is sorted by health score, please select the top 5 healthiest options, ensuring that at least one vegetarian option is included. Provide a list of top 5 healthiest fast food options, including at least one vegetarian option. Generate and filter a DataFrame to identify and combine the top vegetarian and non-vegetarian options from the 'sorted_fastfood' dataset, resulting in a DataFrame and a pickle file containing these selections.
My template of code snippet is:

---BEGIN CODE TEMPLATE---
import pandas as pd  
import pickel 
# Assuming the sorted dataset is loaded as a DataFrame named 'sorted_fastfood'  
   
# YOUR SOLUTION BEGIN:
<code1>
[COMPLETE YOUR CODE]  
</code1>
# YOUR SOLUTION END

print(top_healthy_options)
pickle.dump(top_healthy_options ,open("./pred_result/top_healthy_options.pkl","wb"))
---END CODE TEMPLATE---

[YOU (AI assistant)]: