How many heads of romaine lettuce will you need to make a Caesar salad for 200 people?

This is a tricky question to answer without more information! Here's why:

* Serving size: How much romaine lettuce do you plan to put on each person's plate? A small salad might use 2-3 ounces, while a larger one could be 5-6 ounces.

* Other ingredients: A Caesar salad typically has other ingredients like croutons, Parmesan cheese, and dressing. If you are using generous amounts of these, you might need less lettuce.

* Romaine head size: Romaine lettuce heads vary in size. A small head might be 1 pound, while a large one could be 2 pounds or more.

To figure out the amount of romaine you need:

1. Determine serving size: Decide how much romaine you want per person (in ounces).

2. Calculate total lettuce needed: Multiply the serving size by 200 people. This will give you the total ounces of romaine needed.

3. Estimate romaine head size: Choose a size for your romaine heads and figure out how many ounces are in each head.

4. Divide total ounces by ounces per head: This will give you an approximate number of romaine heads needed.

Example:

* Serving size: 4 ounces per person

* Total lettuce needed: 4 ounces/person * 200 people = 800 ounces

* Romaine head size: Let's say each head weighs about 16 ounces

* Number of heads needed: 800 ounces / 16 ounces/head = 50 romaine heads

Remember: This is just an estimate. You might want to buy a few extra heads to be on the safe side!