Hidden Layer Sweet Potato Casserole

By AislePrompt Editorial · ·

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are developed and reviewed.

A comforting casserole featuring a hidden layer of butternut squash puree beneath a sweet potato topping for unexpected depth of flavor. This American-inspired one-pot recipe, ready in about 60 minutes, pairs sweet potatoes, butternut squash, unsalted butter for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 25 min Cook: 35 min Serves 6 American cuisine 320 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 375°F (190°C) and grease a 9x13-inch baking dish.
  2. Step 2: Boil 1.5 lbs diced sweet potatoes and 1 lb diced butternut squash in salted water until tender, about 20 minutes. Drain and mash both until smooth, then combine in a bowl.
  3. Step 3: Mix in 1/4 cup butter, 1/4 cup brown sugar, 1/2 tsp cinnamon, and 1/4 tsp nutmeg until fully incorporated.
  4. Step 4: Spread half of the sweet potato mixture evenly in the baking dish, then top with 1/4 cup chopped pecans.
  5. Step 5: Spread the remaining sweet potato mixture over the pecans, then whisk together 1/4 cup flour, 1/4 cup milk, and 1/4 cup sour cream to form a smooth sauce. Pour over the casserole and sprinkle with 1/2 cup shredded cheddar cheese.
  6. Step 6: Bake for 30-35 minutes until golden and bubbling around the edges.

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