Easy 15-Minute Chicken Tostadas

1 In a large skillet, on medium-high heat, add 1 tablespoon of oil and chicken. Cook for about 5 minutes and stir in taco seasoning. Remove chicken from the skillet.
2 Add another tablespoon of oil to the same skillet, and add in the onions, corn, and black beans. Sauté for about 5 minutes, or until onions are translucent, and set aside.
3 Evenly distribute the chicken and corn mixture on each tostada and top each one with cheese, diced tomatoes, chopped avocado, and sour cream.
4 Garnish with fresh cilantro, if desired, and Serve.
5 Enjoy!