What menus can the animal restaurant learn after receiving the letter from killer whales?

After receiving the letter from the killer whale, the animal restaurant can learn the following menu:

1. Porphyra egg drop soup: It can only be developed after the letter from killer whales. The ingredients are eggs, laver and stir-fry.

2. curry omelet: it can only be developed after the letter from the killer whale. The ingredients are eggs, flour, corn and cooking.

3. Delicious egg-wrapped rice: it can only be developed after the letter from the killer whale. The materials are eggs, rice, flour and cooking.

I hope the above information can help you solve the problem. Please feel free to let me know if you have any other questions.