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An overhead shot of three assembled black bean tostadas on a parchment-lined white sheet pan on a light grey surface. The tray is surrounded by dishes of avocado crema, charred sweet corn, cotija cheese, and lime wedges.

30-Minute Black Bean Tostadas with Avocado Crema (Vegetarian)

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 4 reviews
  • Author: Jess Larson
  • Prep Time: 20 minutes
  • Cook Time: 10 minutes
  • Total Time: 30 minutes
  • Yield: serves 4-6 1x
  • Category: Tacos, Burritos & Enchiladas Recipes
  • Method: Stovetop
  • Cuisine: Mexican & Tex-Mex, American
  • Diet: Vegetarian

Description

These Quick and Easy Black Bean Tostadas are a weeknight dinner dream!

Crispy tostada shells layered with homemade refried black beans—made with canned beans and warm spices—smoky charred corn, and a drizzle of creamy avocado crema.

Every bite is crunchy, creamy, and packed with bold flavor—and the best part? They’re ready in 30 minutes or less!


Ingredients

Scale
  • 6-8 tostada shells, warmed as desired
  • 2 ears sweet corn, husked
  • 1 medium yellow onion, diced
  • 4 cloves garlic, finely chopped or grated
  • two 14-ounce cans black beans, mostly drained (do not rinse)
  • 2 tablespoons olive oil
  • 1 heaping teaspoon chili powder
  • 1 heaping teaspoon ground cumin
  • 1 heaping teaspoon smoked paprika
  • ¼ cup vegetable broth or water
  • 2 large, juicy limes, juiced
  • kosher salt and ground black pepper, to season

for the avocado crema:

  • 1 large avocado, pitted and peeled
  • 1 large jalapeño, deseeded as desired
  • 1 clove garlic
  • 2 large, juicy limes, juiced
  • ⅓ cup packed cilantro leaves and tender stems
  • ⅓ cup sour cream or full-fat yogurt
  • 2-3 tablespoons water
  • kosher salt and ground black pepper, to season


Instructions

*Prep note: Once you start cooking, these black bean tostadas come together quickly. Have everything chopped, measured, and within arm’s reach of the stovetop before you begin.

  1. Mix the avocado crema: Add all listed ingredients (except water) to a food processor. Season with ½ teaspoon kosher salt and ground black pepper. Pulse to break up the avocado and cilantro, then blend until smooth and creamy. Add water, 1 tablespoon at a time, to reach your desired consistency. Set aside or store in an airtight container in the refrigerator for up to 2 days.An overhead shot of cilantro lime crema in a small white bowl atop a grey textured surface. The bowl is surrounded by small dishes of salt and pepper and a small plate of juiced limes and cilantro.
  2. Char the sweet corn: Place the sweet corn directly over a gas burner, then light to a medium-high flame. Cook 2 minutes per side or until charred as desired. Transfer to a cutting board and carefully slice the kernels off the cob. (No gas stove? Use an outdoor grill, grill pan, or broil the corn in the oven.)An overhead shot of two charred cobs of sweet corn, one with the kernels partially sliced off and onto a wooden board atop a grey textured surface.
  3. Sauté the aromatics: Meanwhile, as the corn chars, heat olive oil in a medium skillet over medium heat. Add the onion and season with 1 teaspoon kosher salt. Cook, stirring occasionally, until translucent and fragrant, 3-4 minutes. Add the garlic, chili powder, cumin, and smoked paprika, stirring to coat. Cook 1-2 minutes, until very fragrant.An overhead shot of browned diced onions in a black cast iron pan atop a grey textured surface.
  4. Make the black bean filling: Stir in the black beans and cook 1-2 minutes until warm. Add vegetable broth/water and bring to a gentle simmer. Using a spatula or wooden spoon, mash some of the black beans to create a creamy, cohesive texture. If needed, cook another 1-2 minutes to thicken slightly. Squeeze in lime juice and season with additional salt and black pepper as desired. Remove from heat.An overhead shot of black bean taco filling in a black cast iron skillet atop a grey textured surface.
  5. Assemble black bean tostadas: If desired, warm tostada shells according to package directions. Spread black bean topping over each tostada shell. Top with charred corn, a drizzle of avocado crema, and any other toppings you love–chopped cilantro, cotija cheese, shredded lettuce, etc. Enjoy!An overhead shot of three assembled black bean tostadas on a parchment-lined white sheet pan on a light grey surface. The tray is surrounded by dishes of avocado crema, charred sweet corn, cotija cheese, and lime wedges.

Notes

Jess’ Tips and Tricks:

  • Dietary Restrictions: As written, the black bean tostada topping is completely vegan, though the avocado crema is not. For a fully vegan dish, swap the sour cream or yogurt in the crema with your favorite dairy-free alternative or try my Vegan Cashew Crema instead.
  • 15-Minute Meal Prep: Most of the active prep work for these tostadas comes from making the avocado crema and chopping the veggies. Prep either or both in advance for a great head start on dinner—it takes 15 minutes, tops:
    • Dice one medium yellow onion and store it in an airtight container in the refrigerator for up to 5 days (<5 minutes active prep).
    • Mix the avocado crema according to Step 2 of the Recipe Directions. Store in an airtight container in the refrigerator for up to 2 days (10 minutes active prep).

Storage and Reheating:

  • Once assembled, black bean tostadas are best enjoyed immediately. However, the black bean topping stores well—keep it in an airtight container in the refrigerator for up to 5 days. Reheat on the stovetop or in the microwave until warmed through, then assemble tostadas as desired.