Preheat your oven to 375°F (190°C). Arrange the tostada shells on a baking sheet in a single layer. Bake for about 5-7 minutes until they are crispy and golden. Keep an eye on them to avoid burning.
If you’re using canned refried beans, open the cans and transfer the beans to a skillet. Heat over medium heat until warmed through, stirring occasionally. If you’re making homemade beans, ensure they are fully cooked and heated.
While the beans are warming, carefully slice the avocados. Remove the pit, and using a knife, create thin slices. Set aside.
In a large bowl, combine the shredded iceberg lettuce and red cabbage. This colorful mixture will add crunch and freshness to your tostadas. Set out your crumbled Cotija cheese, chopped tomatoes, and any other toppings you plan to use.
Once everything is ready, it’s time to assemble! Start with a crispy tostada shell, adding a generous layer of refried beans as the base. Next, layer on the shredded lettuce and cabbage mix. Add avocado slices and sprinkle with Cotija cheese. If you like, drizzle with Mexican crema or Cilantro Lime Crema. Top with chopped tomatoes, pickled jalapeños, and fresh cilantro leaves.
Serve immediately with lime wedges on the side for an extra zing. Enjoy your homemade Easy Tostadas while they're fresh and crispy!