01 -
Preheat oven to 450°F. Arrange corn tortillas in a single layer on a rimmed baking sheet. Brush both sides evenly with canola oil. Bake for a total of 10 minutes, flipping tortillas and rotating the sheet halfway through. Monitor tortillas every 2 to 3 minutes to avoid over-browning.
02 -
While tortillas bake, place shredded chicken, corn, black beans, salsa, and taco seasoning in a medium or large saucepan over medium heat. Cook, stirring occasionally, until heated through, approximately 5 minutes.
03 -
Remove baked tortillas from the oven. Spoon about 1/2 cup of the warm chicken mixture onto each tortilla. Sprinkle with 1/4 cup shredded colby jack cheese per tortilla. Return assembled tostadas to oven and bake for an additional 5 minutes or until cheese is melted and bubbly.
04 -
Remove tostadas from oven. Garnish immediately with fresh cilantro leaves and diced tomatoes. Serve hot.