Loaded Sweet Potato Nachos with 3-Ingredient Cheese Sauce

Nourishing nachos made with crispy sweet potato “chips”, black beans, and a super-quick, gooey three-ingredient cheese sauce.

I have a soft spot for nachos — they may very well be my kryptonite. My kids love them too. When a craving hit and I spotted a lone sweet potato in the kitchen, I decided to turn it into a slightly healthier chip and make a quick batch of nachos.

The cheese sauce for this recipe is deliberately simple: milk, shredded cheese, and cornstarch. It comes together fast, has a silky texture, and works well not only on these nachos but also on roasted vegetables, steamed cauliflower, or as the base for an easy mac & cheese shortcut.

I served these as a straightforward lunch topped with black beans and fresh cilantro, but you can customize with whatever you enjoy: diced tomato, sliced olives, chopped onion, fresh or pickled jalapeños, avocado, sour cream, or a squeeze of lime. A single large sweet potato will feed two hungry people; double the quantity if you need to feed more, and make sure the slices remain in a single layer while baking so they stay crisp rather than becoming soggy.

Sweet Potato Nachos with Easy 3-Ingredient Cheese Sauce

By: Jennifer Pallian BSc, RD

Summary: Crispy baked sweet potato slices topped with black beans and a quick, creamy cheese sauce. A nutritious, family-friendly twist on classic nachos.

Ingredients

For the Cheese Sauce

• 1 cup whole milk
• 1 tablespoon cornstarch
• 1 cup shredded cheese

For the Nachos

• 1 large sweet potato, very thinly sliced
• 4 tablespoons canola oil or peanut oil (for tossing the slices)
• 1 cup cooked black beans (canned, drained and rinsed, works well)
• Green onion, cilantro, and/or other toppings of choice
• Salt, to taste

Instructions

1. Preheat your oven to 450°F (or use the convection setting if available). Line two baking sheets with parchment paper.
2. Arrange the very thin sweet potato slices in a single layer across the two sheets. Drizzle with the oil, sprinkle with salt, and toss gently so each slice is evenly coated. Avoid overlapping slices to keep them crisp.
3. Bake the sweet potato slices for about 20 minutes, flipping them and rotating the pans once halfway through. They are ready when lightly browned on top and the edges are crisp.
4. While the potatoes bake, make the cheese sauce. In a small saucepan, pour in the milk and whisk in the cornstarch until fully dissolved. Place the pan over medium heat and bring the mixture to a gentle boil, whisking frequently to prevent scorching. Let it boil for about a minute until it thickens slightly, then remove from the heat.
5. Stir in the shredded cheese until melted and smooth. Taste and adjust with a pinch of salt if needed.
6. When the sweet potato chips are done, arrange them on a serving platter. Top with warmed black beans, pour over the cheese sauce, and finish with green onion, cilantro, or any other favorite toppings.

Serving tip: These nachos are best enjoyed right away while the sweet potato slices are still crisp. If you need to hold them briefly, keep the chips on a single layer on a warm baking sheet and add the toppings just before serving.

Variations and Tips

• Spice it up: Add a pinch of smoked paprika or chili powder to the oil when tossing the sweet potato slices.
• Dairy-free option: Use a plant-based milk and a dairy-free shredded cheese alternative; cornstarch still works as a thickener for a similar texture.
• Make it a meal: Add grilled chicken, seasoned ground turkey, or extra beans to boost protein and make it heartier.
• Crunch factor: For extra crunch, bake the slices a couple of minutes longer but watch carefully to prevent burning.

Nutrition (per serving)

Calories: 723 kcal | Carbohydrates: 33 g | Protein: 30 g | Fat: 53 g | Saturated Fat: 18 g | Polyunsaturated Fat: 10 g | Monounsaturated Fat: 20 g | Cholesterol: 111 mg | Sodium: 1116 mg | Potassium: 776 mg | Fiber: 3 g | Sugar: 11 g | Vitamin A: 16606 IU | Vitamin C: 16 mg | Calcium: 564 mg | Iron: 2 mg

Nutrition information is automatically calculated and should be used as an approximation.

This simple recipe is perfect for a quick family meal or a casual snack. It balances sweet, savory, and creamy elements while adding vegetables in a fun way. If you try it, leave a comment describing what toppings you used and any tweaks you made — it’s always great to hear how readers customize recipes to make them their own.