Ingredients

• 1 cup mayonnaise
• 2 tablespoons Dijon mustard
• 1 pound ground chicken
• 2 cups panko bread crumbs
• 1/2 cup milk
• 3 tablespoons finely chopped onion
• 3 tablespoons finely chopped celery
• 2 tablespoons crumbled blue cheese
• 1 teaspoon garlic powder
• salt and ground black pepper to taste
• 1/4 cup olive oil
• 4 hamburger buns, split and toasted
• 4 slices tomato (optional)
• 4 leaves lettuce (optional)

Instructions

1. Whisk mayonnaise and Dijon mustard together in a small bowl. Transfer to the refrigerator.
2. Mix chicken, panko bread crumbs, milk, onion, celery, blue cheese, garlic powder, salt, and pepper together in a large bowl. Shape into 4 patties.
3. Heat olive oil in a large skillet over medium heat. Cook patties until browned and the juices run clear, 5 to 7 minutes per side. An instant-read thermometer inserted into the center should read at least 165 degrees F (74 degrees C).
4. Spread mayonnaise mixture over both sides of each bun. Place a cooked patty, 1 tomato slice, and 1 lettuce leaf in each bun.