Quick-and-Easy Turkey Burgers

The Spouse made this recipe.  I believe he used an additional spice blend that we got from a friend of ours that you can only get in the Twin Cities area.

Quick-and-Easy Turkey Burgers

1 lb ground turkey breast
2 tsp garlic powder
1 tsp Cajun seasoning
1/4 tsp black pepper
3 tbsp light teriyaki sauce
1 tbsp water
Cooking spray
1 large onion, cut into (1/4-inch-thick) slices (about 2 cups)
1 tsp olive oil
4 (1 1/2-ounce) hamburger buns
8 (1/4-inch-thick) slices tomato (optional)
4 curly leaf lettuce leaves (optional)

Combine the first 4 ingredients in a large bowl. Divide the turkey mixture into 4 equal portions, shaping each portion into a 1/2-inch-thick patty. Combine the teriyaki sauce and water in a small bowl.

Place a large nonstick skillet coated with cooking spray over medium heat until hot. Add the onion slices; cover and cook 10 minutes or until onion is golden brown, stirring frequently. Stir in 1 tbsp teriyaki mixture. Remove onion from pan, and keep warm. Add olive oil to pan. Add patties, and cook 5 minutes over medium heat. Add remaining teriyaki mixture to pan. Carefully turn patties over, and cook for 3 minutes or until golden.  Place burgers on buns and serve with various garnishes.