Preheat oven to 350 degrees F.
Add the tortillas to the taco salad bowl makers. Place in the oven 10-15 minutes.
Add the sour cream, cilantro, lime juice, garlic, cumin, water, and salt to a blender or magic bullet. Blend until the dressing is smooth.
In a large mixing bowl add the lettuce, tomatoes, corn, black beans, and red onion. Pour the salad dressing and toss until combined.
Add the salad to the tortilla bowls.