Coat both sides of tortillas with nonstick cooking spray or oil. Stack and cut into 8 wedges. Push wedges into muffin cups. Bake for 6-8 minutes or until crispy and golden brown.
Mash avocado, sour cream, tomato, lime juice, garlic, and cilantro together in a small bowl. Salt to taste and chill.
Cook ketchup, sugar, chipotles, soy sauce, vinegar, chili powder, and chicken in a medium saucepan over medium-low heat for 8 minutes or until sauce is syrupy.
Top each tostada with 1 teaspoon of avocado mixture, then 1-2 tablspoons chicken mixture.
Garnish each tostada with a small dollop of sour cream, cilantro and lime zest.
Notes
8-10 inch tortillas work best to cut to fit in your muffin pan.Make sure you cook the tortillas enough to make them crispy.Nutritional information is approximate and was calculated using a recipe nutrition label generator.★ Did you make this recipe? Don't forget to give it a star rating below!