Black Bean Tostadas with Pickled Veggies

Published: June 2, 2026
Crystal AndersonCrystal Anderson
Categories: Lunches, Vegetables
Tags: Vegetarian, Lunch, easy, Quick Dinner, Mexican

Black Bean Tostadas

Crispy tostadas topped with seasoned black beans, fresh toppings, and tangy pickled vegetables. A vibrant, satisfying meal.

Prep Time:15 minCook Time:10 minTotal Time:25 minServings:4Difficulty:Easy

Nutrition (per serving)

Calories:320 kcal
Protein:12 g
Carbs:42 g
Fat:12 g

Black bean tostadas are one of my favorite go-to meals when I want something that feels indulgent but comes together in minutes. There's something magical about the combination of crispy, golden tostadas, creamy seasoned black beans, and bright, tangy pickled vegetables that just makes your taste buds sing. The beauty of this dish is that it's incredibly flexible—you can load them up however you like.

What truly elevates these tostadas is the homemade pickled vegetables. That sharp, vinegary bite cuts through the richness of the beans and cheese in the best way possible, and it takes the whole dish from simple to restaurant-quality. I love making a batch of these pickled veggies ahead of time so they're ready whenever I need them. They keep beautifully in the fridge and make any weeknight dinner feel special.

Ingredients

  • Corn tostadas:8 pieces
  • Canned black beans:2 cans (15 oz each)
  • Red onion:1 medium
  • Fresh jalapeño:1 piece
  • White vinegar:½ cup
  • Water:½ cup
  • Sugar:1 tbsp
  • Salt:1 tsp
  • Garlic cloves:2 cloves
  • Cumin:1 tsp
  • Chili powder:½ tsp
  • Crumbled queso fresco:½ cup
  • Fresh cilantro:¼ cup
  • Lime:1 piece
  • Avocado:1 piece
  • Sour cream:¼ cup
  • Olive oil:1 tbsp

Instructions

  1. Slice the red onion thinly and slice the jalapeño into rings. In a small saucepan, combine vinegar, water, sugar, salt, and garlic. Bring to a boil, then pour over the onion and jalapeño slices in a jar. Let cool, then refrigerate for at least 30 minutes.

    Hot vinegar brine poured over sliced red onions and jalapenos in a glass jar
  2. Drain and rinse the black beans. Heat olive oil in a skillet over medium heat, add cumin and chili powder, and toast for 30 seconds until fragrant. Add the black beans, salt, and pepper to taste. Cook for 5 minutes, stirring occasionally, until warm and slightly thickened.

    Seasoned black beans cooking in a skillet with cumin chili powder and a wooden spoon
  3. Warm the tostadas in the oven at 350°F for 3-4 minutes, or heat them in a dry skillet until warm and slightly crispy.

    Golden corn tostada shells warming on a baking sheet until crisp
  4. Spread a generous spoonful of sour cream onto each warm tostada. Top with the seasoned black beans, pickled onions and jalapeños, sliced avocado, crumbled queso fresco, and fresh cilantro. Serve immediately with lime wedges on the side.

    Black bean tostadas assembled with sour cream pickled onions jalapenos avocado queso fresco and cilantro

Tips & Notes

  • Make the pickled vegetables up to a week ahead—they taste even better as they sit and the flavors develop.
  • If you prefer your tostadas extra crispy, brush them lightly with olive oil before warming.
  • You can add shredded cabbage, diced tomato, or radish slices for extra crunch and freshness.
  • Don't skip the lime—a squeeze of fresh lime juice at the end brightens the whole dish.