This Pumpkin Kale Lasagna is everything you love about cozy fall meals. It starts with layers upon layers of silky cheese sauce, no-cook lasagna noodles, garlicky sautéed kale, and a creamy pumpkin ricotta mixture! It's rich, decadent, and the best kind of autumn comfort food. To top it all off, the lasagna gets topped with brown butter crispy sage leaves!