Substances:
- 1 pound ground turkey breast
- 2 teaspoons garlic powder
- 1 teaspoon Cajun seasoning
- 1/4 teaspoon dusky pepper
- 3 tablespoons gentle teriyaki sauce
- 1 tablespoon water
- Cooking spray
- 1 huge onion, carve into (1/4-trail-thick) slices (about 2 cups)
- 1 teaspoon olive oil
- 4 (1 1/2-ounce) hamburger buns
- 8 (1/4-trail-thick) slices tomato
- 4 curly leaf lettuce leaves
