Jad, we have a recipe here with some clams and onion all cooked with pasta together so maybe this can help you adapt it to trial it out
Some garlic, shallot (or onion),30g olive oil in THX, 3 mins, Temp Varoma, Speed 1.
Then we add 500g tinned chopped tomato,, 350g water and some spices (so you will need to place 850g liquid, whether it be water, wine, stock etc) This cooks for 14 mins, Temp Varoma, Speed 1. And above in the Varoma you place the spaghetti so that it gets some steam and becomes softish. Clams are steamed in the varoma.
When the time is up, place the spaghetti (300g) in THX wrapping it around the blades,(its all soft)
And then program 8 mins (or whatever it says on packet) Temp Varoma, reverse, soft speed.
Now I have made this and theres not that much sauce on. Its lovely!
So maybe you could do similar by doing the garlic and onion, then some tomato (take out 150g as you will be adding 150g pesto sauce) and water, and then when you add the pasta to the THX add the pesto sauce that you have previously made!
Hope this inspires you to try!
The recipe I made above worked perfectly!
Could be a pesto (with a bit of tomato) But what you must take into account I guess is the fact that to cook 300g pasta you will need almost 900g liquid. I might try it, no pine nuts though so will have to wait till next week! If it works I will let you know!