Soups, Stews and Chowders
Soup is a great entry level activity to start homesteading with. Its easy, nutritious and with some basic equipment and a few skill sets, you can wow the room.
It can also be a healthy as it tends to be high in vegetables (which you grow), very filling and low in energy density. And your homemade soup is a better choice than canned soup as it avoids the chemical BPA and high sodium content.