Using 1 tablespoon extra virgin olive oil, brush each of the 8 small corn tortillas 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 together 2 cups refried beans and 2 teaspoons Homemade Taco Seasoning together until well combined in a small mixing bowl.
Carefully remove the corn tortillas from the oven and spread each tortilla with the bean mixture. Top with 8 ounces colby jack cheese, using about 2 tablespoons of shredded cheese per tostada. Return to the oven and bake until the cheese is just melted, about 5 minutes.
Remove from the oven, top tostadas as desired, and serve immediately.
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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.