But at least it is vegetarian.
Is it more important for you to be on a “healthy” diet or to have mainly convenient foods in the form of meal replacement powders? If convenience is more important there are special keto meal replacements, for example the product recommended by rikefrejut, but also products from companies like ambronite or ample. These are more expensive than Huel, though.
But depending on the maximum amount of carbs that you “allow” yourself a small amount of Huel Black Edition would still be possible. What is your carb limit?