Bring a large pot of salted water to a boil and cook the chickpea pasta according to the package directions until al dente.
While the pasta cooks, place the silken tofu, nutritional yeast, lemon juice, onion powder, sea salt, and black pepper into a high-speed blender and process until completely smooth.
Heat the extra virgin olive oil in a large non-stick skillet over medium heat.
Add the minced garlic and sliced cremini mushrooms to the skillet, sautéing for 5-7 minutes until the mushrooms have released their moisture and turned golden brown.
Pour the vegetable broth into the skillet to deglaze, then add the baby spinach and stir until just wilted.
Reduce the heat to low and pour the blended tofu cream sauce into the skillet, stirring constantly to warm through without boiling.
Drain the pasta and add it directly to the skillet, tossing gently to coat every noodle in the rich, creamy sauce before serving.