Caramelized onion lovers only need apply.
..or, you know, not....I suppose you could always make the sauce and omit the onions. If that's the sort of path you want to take in life. Whatev. You do you, boo.
But I highly recommend the onions.
Psssttt...I also have a fun fact about this pasta for you....IT'S HEALTHY! The "sauce" is made from Greek yogurt, roasted garlic, and broth (I used chicken broth but if you're vegetarian you can use vegetable broth). If you're skeptical about the Greek yogurt, and worried it might be too tangy---um...don't be. I am NOT a tangy person, I do not care for that flavor profile. But I loved this pasta (it helps if you use a brand of Greek yogurt that's less tangy, like Fage, and also...those caramelized onions help too. Seriously. Just use 'em.)
Parmesan cheese, roasted garlic, caramelized onions...all over a big bowl of carbs!
...This might be my idea of heaven. If there are cookies for dessert than yeah, I'm definitely reaching a personal state of Nirvana with this situation. Thank you, pasta....thank you.