Sugar-Free Layered Sweet Potato & Butternut Squash (Savory Bake) A cozy, oven-baked layered casserole of thin sweet potato and butternut squash slices with garlic-herb cream and a cheesy top—comfort food without added sugar. Ingredients Vegetable layers (Sugar-Free) 2 medium sweet potatoes, peeled and thinly sliced ​ 1 small butternut squash, peeled and thinly sliced ​ 2 tbsp olive oil ​ 1 tsp garlic powder (or 2 cloves garlic, minced) ​ 1 tsp dried thyme or rosemary ​ Salt and black pepper to t