Thank you

I'm really pleased you are liking the pesto. I can imagine how good that tortellini will be. My mouth is watering at the thought. Enjoy!

Kale does have a pungent taste when it's blended up raw. That is balanced with the cheesiness of the nutritional yeast and the flavour of the almonds though. They all balance each other out nicely. The nutritional yeast is a BIG part of this recipe. It just isn't the same without it. Capers have a salty, sharp taste and lemon juice is sharp so you probably haven't done yourself any favours by adding them instead. It's not a good balance.
The kale flavour does mellow a little over a couple of days in the fridge when made as instructed, but as you haven't followed the recipe and the balance of flavours is off, I can't say whether yours will improve or not.
The nutritional yeast would really help make it more appealing to your kids palates, but bear in mind that kale isn't the most kid friendly ingredient to begin with, (unless they happen to be real lovers of it which most kids aren't).

I just made the recipe (without the nutritional yeast because I didn't have any on hand so I put in some capers and a squeezed lemon's juice instead). The texture and colour are great, however there is a very bitter aftertaste that is very off-putting especially for the kids. First taste is fresh and green and immediately after, comes a very bitter flavour.
Does the fact of letting it sit in the fridge a couple days make it less bitter ? Any tips otherwise to counterbalance the bitterness ?
Thanks !

Thank you so very much! I look forward to trying out this recipe <3

Olive oil gives it great flavour and a creamy consistency. You could just use water but it will affect the texture and taste. Using something to replace the oily creaminess would be best. I think avocado might work or some cooked white beans. Bear in mind that I haven't tried doing this myself though but it should work out fine. Hope that helps :0)