Oven BakedTostaAvocadobutternut squashGround Cumin

Butternut Squash Black Bean Tostadas

Nutriforks
Nutriforks
·7 min read·Published: Feb 11, 2026
Butternut Squash Black Bean Tostadas
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These butternut squash black bean tostadas are a healthy, easy fall meal perfect for Halloween. Crispy baked tortillas, roasted squash, and creamy avocado dressing.

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Why These Tostadas Are My Halloween Dinner Go-To

Halloween is almost here, and I’ve got our dinner sorted. These butternut squash black bean tostadas are exactly what we need: orange squash, black beans, and blue corn tortillas make it look festive, and it’s healthy enough that we can justify extra candy. Plus, they’re a regular in our rotation because they’re so easy and full of flavor. I roast the squash with cumin and lime, bake the tortillas until crispy (no frying!), and top them with black beans, lettuce, and a creamy avocado dressing. Josh keeps trying to get me to dress up, but I think my yoga pants costume is scary enough.

What Makes These Butternut Squash Black Bean Tostadas So Good

  • The roasted butternut squash gets sweet and caramelized, pairing perfectly with the tangy, creamy avocado dressing.
  • Baking the tortillas instead of frying gives you crispy tostadas without the grease, so you can feel good about eating a few.
  • It’s a quick weeknight meal that feels special enough for a Halloween dinner, and you can customize toppings however you like.

Key Ingredients for These Mexican-Style Tostadas

  • Butternut squash: Look for a squash that feels heavy for its size with no soft spots. The flesh should be deep orange. If you can’t find one, sweet potato is a great stand-in.
  • Blue corn tortillas: They add a fun Halloween color and a slightly nutty flavor. Regular yellow or white corn tortillas work just as well if you can’t find blue.
  • Avocado: Choose avocados that yield slightly to gentle pressure. If they’re too firm, the dressing won’t be creamy. If they’re too soft, the dressing may turn brown faster.

Kitchen Tools You’ll Need for Tostadas

  • Two large baking sheets (one for squash, one for tortillas)
  • Blender or food processor (for the avocado dressing)
  • Large bowl (for tossing squash with oil and spices)
  • Chef’s knife and cutting board
  • Measuring spoons and a citrus juicer

Tips for Perfectly Crispy Tostadas and Roasted Squash

Spread the squash in a single layer on the baking sheet. If the pieces overlap, they’ll steam instead of caramelizing, and you’ll miss that sweet, browned edge. Check the tortillas at the 3-minute mark. Ovens vary, and they can go from golden to burnt fast. I like to rotate the pan halfway through for even browning.

The avocado dressing thickens as it sits. If you want a thinner drizzle, add a splash of buttermilk or water and pulse again. Taste and adjust salt and lime juice before serving. You can make the dressing a few hours ahead, but press plastic wrap directly onto the surface to keep it from browning.

Ways to Change Up These Vegetarian Tostadas

If you can’t find butternut squash, sweet potato or pumpkin works just as well. Cut them the same size and roast until tender. For a protein boost, add shredded chicken, crumbled tofu, or extra black beans. To make the dressing vegan, swap the buttermilk for a mixture of unsweetened almond milk and a teaspoon of vinegar, or use a ripe avocado blended with lime juice and water. If you like more heat, leave the seeds in the jalapeño or add a pinch of cayenne to the squash before roasting.

How to Serve Butternut Squash Black Bean Tostadas

Set out bowls of extra toppings so everyone can build their own. Crumbled queso fresco or cotija adds a salty bite, and pickled red onions bring a bright tang. A drizzle of hot sauce or a spoonful of salsa verde wakes everything up. For a side, try Mexican rice or a simple cabbage slaw with lime. If you want to keep it light, a handful of fresh cilantro and a squeeze of lime over the top is all you need.

How to Store Leftover Tostada Components

Store each component separately to keep the tostadas from getting soggy. The roasted squash and black beans will keep in the fridge for up to 4 days in airtight containers. The avocado dressing is best within 2 days, but press plastic wrap directly onto the surface to slow browning. Baked tortillas can sit at room temperature in a sealed bag for a few days, though they’ll lose some crunch. Re-crisp them in a 350°F oven for a few minutes before serving.

Can You Freeze Butternut Squash Black Bean Tostadas?

You can freeze the roasted squash and the black beans separately for up to 3 months. Let them cool completely, then pack in freezer-safe bags. The avocado dressing does not freeze well, so make it fresh. The baked tortillas can be frozen, but they’ll soften when thawed. If you want to freeze assembled tostadas, skip the dressing and lettuce, then reheat the whole thing in the oven and add fresh toppings after.

Best Way to Reheat Tostadas Without Losing Crunch

For the squash and beans, reheat them in a skillet over medium heat or in the microwave. The tortillas need dry heat to crisp up again. Spread them on a baking sheet and warm them in a 350°F oven for 3 to 5 minutes. Watch closely so they don’t burn. Never microwave the tortillas, they’ll turn chewy. Assemble the tostadas right after reheating so the toppings don’t make the shells soggy.

Frequently Asked Questions About Butternut Squash Black Bean Tostadas

Can I use pre-cut butternut squash from the store?

Yes, pre-cut cubes save time. Just make sure they’re roughly the same size so they roast evenly. You’ll need about 3 to 4 cups.

What can I use instead of buttermilk in the dressing?

Mix 1/2 cup of milk (dairy or plant-based) with 1/2 tablespoon of lemon juice or vinegar. Let it sit for 5 minutes, then use it in place of the buttermilk.

How do I keep the tostadas from getting soggy?

Assemble them just before serving. Keep the tortillas, squash, beans, and dressing separate until you’re ready to eat. If you need to prep ahead, store everything in separate containers.

Can I use flour tortillas instead of corn?

You can, but they won’t get as crispy as corn tortillas. Corn tortillas are naturally sturdier and hold up better to baking. If you use flour, watch them closely because they brown faster.

Are these tostadas gluten-free?

Yes, as long as you use 100% corn tortillas. Check the label to make sure they’re not mixed with wheat flour. All other ingredients are naturally gluten-free.

Can I make the avocado dressing ahead of time?

You can make it up to a few hours ahead. Press plastic wrap directly onto the surface of the dressing to prevent browning. Stir before using.

Recipe

Butternut Squash Black Bean Tostadas

Butternut Squash Black Bean Tostadas

An easy and healthy fall meal! Feel free to add your favorite toppings to the tostadas-go crazy!

easyVegetarian

6

Servings

Dinner

Course

Mexican

Cuisine

49 kcal

Calories

Ingredients

Servings

Tostada Shells

  • 6 blue corn tortillas
  • cooking spray
  • salt

For the Butternut Squash

  • 1 medium butternut squash, peeled, seeded and cut into 1/2-inch cubes
  • 1 tbsp olive oil
  • 0.5 tsp ground cumin
  • 1 tbsp lime juice
  • salt and black pepper

For the Creamy Avocado Dressing

  • 2 ripe avocados, peeled and seeded
  • 0.5 cup low-fat buttermilk
  • 2 cloves garlic, minced
  • 0.25 cup fresh cilantro, chopped
  • 2 tbsp green onion, chopped
  • 1 small jalapeño pepper, chopped and seeds removed
  • 2.5 tbsp fresh lime juice
  • 0.25 tsp ground cumin
  • salt and ground black pepper

Tostada Toppings

  • 2 15 ounce cans black beans, rinsed, drained, and heated
  • 1 small red onion, diced
  • 0.5 cup pepitas
  • lettuce, chopped

Instructions

  1. 1

    To make the baked tostada shells, preheat the oven to 400 degrees F. Spray each side of the corn tortillas with cooking spray. Season with salt. Place tortillas on a large baking sheet and bake until tostadas are lightly browned and crisp on one side, about 3-5 minutes. Remove from oven and flip the tortillas. Place back in the oven and cook until lightly browned and crisp on the other side, about 3-5 minutes. Set aside.

  2. 2

    In a large bowl, add the butternut squash, olive oil, cumin, lime juice, salt, and pepper. Toss until squash is well coated. Spread the squash out in a single layer on a large baking sheet. Place in the 400 degree F oven and roast until the squash is tender and starts to caramelize on the edges, about 30-35 minutes.

  1. 3

    While the squash is roasting, make the creamy avocado dressing. Combine the avocados, buttermilk, garlic, cilantro, green onion, jalapeño, lime juice, cumin, salt, and pepper in a blender or food processor and blend until smooth.

  2. 4

    To assemble the

Nutrition (per serving)

49kcal

Calorie breakdown

Protein11%6 kcal
Fat58%30 kcal
Carbohydrates31%16 kcal
How this was calculated — 16 of 21 ingredients matched
blue corn tortillasTortilla, blue corn, Sakwavikaviki (Hopi)17 kcal
cooking sprayOil, PAM cooking spray, original8 kcal
saltSalt, table0 kcal
olive oilOil, corn, peanut, and olive133 kcal
ground cuminSpices, cumin seed9 kcal
lime juiceLime juice, raw4 kcal
salt and black pepperPepper, banana, raw0 kcal
ripe avocadosBananas, ripe and slightly ripe, raw2 kcal
low-fat buttermilkMilk, buttermilk, fluid, cultured, reduced fat67 kcal
garlicGarlic, raw15 kcal
fresh cilantroCoriander (cilantro) leaves, raw14 kcal
green onionOnions, young green, tops only8 kcal
fresh lime juiceLime juice, raw9 kcal
ground cuminSpices, cumin seed5 kcal
salt and ground black pepperPepper, banana, raw0 kcal
lettuceLettuce, red leaf, raw0 kcal
Serving size ≈ 51 g · 6 servings

Nutrition information is automatically calculated from USDA FoodData Central, so should only be used as an approximation. Actual values may vary depending on the ingredients, brands, and preparation methods used.

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Keyword: fall, gluten-free, kid-friendly, main dish, Oven Baked, vegetarian

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Tags:fallgluten-freekid-friendlymain dishvegetarian

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Nutriforks

NutriForks is a home-cooking site built around two simple ideas: recipes should actually work, and you should know what’s in them. Every recipe pairs clear, tested instructions with a full nutrition breakdown, so healthy, everyday cooking is genuinely easy.

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