You can create a food item that will be a combination of multiple food items. That is called a combo item. E.g: You make a combo meal that contains a Fried Rice, a Beef Chilli Onion, a Cashio Nut Salad and a Cold Drinks.
Sometimes Combo Items are called Set Menu.
To create a combo item please go to the food menu and select Combo from Food Menu Type. Then you will get the option to select food menus rather than ingredients.
Remind that when you sell a combo item, the ingredients stock of all food items of that combo item will get deducted from POS.