Go to Robin (the house under Houshan Hot Spring) and spend money to upgrade the house. After the house is upgraded, there will be a kitchen where you can cook and feed yourself.

Several sources of recipes:

1. Turn on the TV every day. Occasionally, there will be a cooking channel. You can learn to cook a dish.

You can buy recipes in the bar.

3. Have a good relationship with Linus (an old man living in a small tent in Houshan) (Linus usually likes the green onions or wild vegetables he picks up), and Samsung will send you a sashimi recipe after he likes it.

4. Have a good relationship with Robin's husband, and Samsung will issue recipes later.