Substitute jalapeño or serrano peppers for the habanero chiles.
For Easy Cleanup
Spoon mayo mixture into large resealable plastic bag. Add fish, 1 fillet at a time; seal bag, then shake gently to evenly coat fish. Coat with crushed tostadas, then bake as directed. Discard shaker bag after use.
Substitute crushed tortilla chips for the tostadas.