Hey @Shivian - welcome to the US Huel forum!
The pasta is meant to be al dente - however, if you find it is crunchy I would agree with @JeffOakley and let it sit for another few minutes and maybe add in a few more drops of water. Not a ton more water though as you may not want it to be watery!
Another fun trick: after you let the Mac and Cheeze sit for the first five minutes and then stir, add in a few drops extra of water, and then place in the microwave for 20-30 seconds or less (in a microwave-safe dish) if you have a microwave available. This can help too!
You also want to be sure you keep an eye on it so it doesn’t bubble over. Then I stir again once out of the microwave and let it sit for a minute or two before consuming as it is quite hot when I make it this way. I would also note to be careful when you take it out of the microwave too due to the fact that it’s hot!
Let me know if you give the above a try and it helps or if even letting it sit for 10 minutes helps too!