Each time you don't know what to cook or eat, you simply press the button a couple of times and some ideas will pop up that might fit to your current desire.

It shows you randomly a meal by pressing the button. With the checkboxes above, you can filter your results e.g. you want meals, which can be made vegan, then you can check the box "Vegan" and press the button.

You can also click on a type of preperation to look for an recipe in Google, pretty handy.