Which menu item is appropriate for a lacto-ovo vegetarian?

A lacto-ovo vegetarian consumes dairy products and eggs but excludes meat, fish, and poultry from their diet. Therefore, the most appropriate menu item for a lacto-ovo vegetarian would be a cheese omelet. This option includes eggs and cheese, aligning perfectly with the dietary restrictions of someone who follows a lacto-ovo vegetarian lifestyle.

The other menu items are unsuitable because they contain fish or meat. Tuna salad and shrimp creole include seafood, which is not permitted. Baked haddock features fish, making it an inappropriate choice for someone adhering to a lacto-ovo vegetarian diet. The cheese omelet fits the dietary guidelines and provides a source of protein and nutrients from both the eggs and the cheese.