Stir in onion and garlic and cook until softened and fragrant, about 3 minutes. Add thyme and cook 2-3 minutes. Add to warmed crockpot along with the bay leaves, broth, plus the squash and dry lentils.
Stir, cover and cook in crockpot for 3-4 hours on high or until squash is very tender.
Meanwhile, in a large pot, cook pasta according to package directions until it’s al dente.