Prep the chickpeas. Preheat the oven to 400ºF then drain and rinse the chickpeas. Use a tea towel to dry them well before adding them to the bowl of a food processor. Pulse a few times until they resemble breadcrumbs then transfer to a parchment-lined baking sheet. Toss with a generous amount of olive oil, 1 tablespoon of Italian seasoning, and salt, to taste, then spread into an even layer. Bake for 25-28 minutes.
Build the flavor. Heat olive oil in a pot over medium heat. Once warm, cook the onion and garlic until fragrant and starting to brown, about five minutes. Add in the carrot slices, raw cashews, and veggie broth, and bring to a boil.
Simmer. Reduce heat to a simmer, cover, and cook for 15-20 minutes or until the carrots are fork-tender. While the sauce starts to simmer, cook your pasta according to the package directions.
Blend. Transfer the mixture to a blender along with the white miso paste, salt, and pepper, and blend until completely smooth and creamy. Taste and adjust the seasoning as needed.
Combine. Pour the sauce over the cooked pasta and top with the chickpea breadcrumbs. Serve immediately.