3. Prepare the Sauce: In a mixing bowl, combine the vegan mayonnaise, vegan sour cream, garlic powder, and dried thyme. Mix well until the ingredients are thoroughly combined.
4. Assemble the Casserole: In a large baking dish, layer half of the sautéed onions at the bottom. Spread half of the sauce mixture over the onions. Repeat the process with the remaining onions and sauce, ensuring an even distribution.
5. Top with Breadcrumbs and Vegan Parmesan: Sprinkle the breadcrumbs and vegan Parmesan cheese over the top of the casserole, creating a deliciously crunchy crust.
6. Bake to Perfection: Place the casserole in the preheated oven and bake for 25-30 minutes or until the top is golden brown, and the casserole is bubbling around the edges.
7. Garnish and Serve: Once out of the oven, let the casserole rest for a few minutes. Garnish with fresh chives for a burst of color and added flavor. Slice and serve warm.
8. Enjoy the Vegan Delight: Dive into the layers of caramelized sweet onions and creamy sauce, reveling in the comforting taste of this vegan sweet onion casserole. Pair it with a side salad or your favorite grain for a complete and satisfying meal.
This vegan sweet onion casserole offers a delightful twist on a classic comfort food dish, proving that plant-based eating can be both flavorful and comforting.
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