If know the name of the food you want, you can type it in the violet color input box at the tip-right corner, or use the scroll bar to page down to your selection. To select an item, click on its name at the left-most column to bring it to table, or drag it to a storage space. For food with more than one word, try reversing the word order if you can't find it (for example: for "Chicken soup," type either chicken or soup).