Brush each tortilla with oil on each side and place them on a large sheet pan, being careful not to overlap. Bake for 8-10 minutes, or until just crisp.
In the meantime, mix the beans and taco seasoning together.
Spread the bean mixture evenly over baked tortillas and then top with cheese. Return to the oven until the cheese is just melted.
Right before serving, top with corn, peppers, tomatoes, lettuce, cilantro, and hot sauce as desired.
Video
Notes
Taco Seasoning: In place of the homemade taco seasoning, use ¼ teaspoon each cumin, paprika, garlic powder, chili powder, onion powder, and a dash of salt.Add veggies: If desired, add up to ½ cup of carrot, sweet potato, or pumpkin puree to the refried beans. This adds a nice dose of veggies without overwhelming the flavor of the beans. Storage: It is best to serve these tostadas right away. If you happen to have leftovers, place them in a sealed container between layers of parchment paper. Reheat the tostadas on a baking sheet at 400 degrees for 5-7 minutes. Top and serve.