The set is a collection of cooked food, ingredients, and plant seeds that you can use to grow in your game.
The pack is focused on survival games, where you can find food or cook. If your game has domesticated animals (cow / goat) that can give milk, then all the icons will suit you; if there are no such animals, then you can simply not use these icons.
I made pictures showing what ingredients you can use to make a dish (they are in the project in the "Recipes" folder). You don't have to use them, this is just an example. You choose the amount of ingredients yourself (I made 2 examples for clarity). I made seeds for foods that can be grown. However, there are items that, according to my idea, you can only find.