Two years ago already they exist
https://nypost.com/2017/08/16/bug-burgers-are-hitting-supermarket-shelves/
A supermarket chain in Switzerland will start selling edible bugs in the form of burgers.
Coop, the country’s second-largest chain, will begin selling insect patties and mealworm balls in seven of their stores beginning Aug. 21.
Created by Swiss startup Essento, the burgers are made with mealworms, rice and vegetables, and flavored with oregano and chili. The insect balls are made with mealworms, chickpeas, onions and garlic.
In May, Switzerland revised its food safety laws to allow for the sale of insect products containing crickets, grasshoppers and mealworms — the first European country to do so.
Insects “have a high culinary potential, their production saves resources and their nutritional profile is high-quality,” Christian Bärtsch, the co-founder of Essento, said in a statement.