Final answer:
The question about the 'Sirloin with Grilled Avocado' dish served with a half house salad cannot be verified without context from a specific restaurant's menu or course material. Generally, one would check the menu to confirm the details of this dish in a real-world setting.
Step-by-step explanation:
This appears to be a question that relates to a menu item description, possibly from a business studies perspective or a practical exercise in a hospitality or culinary class. Without additional context, such as a menu or guidance from a textbook, it's challenging to determine the veracity of the statement definitively. Normally, for factual information about a specific restaurant's offerings, one would reference the menu directly, which would be considered the authoritative source for such a query.
If this information is being used in a hypothetical scenario for educational purposes, you might be expected to apply knowledge of menu design and item description. However, if this question comes from a real-world context, the only way to answer correctly would be to see the restaurant's actual menu or to have prior knowledge of their offerings.