Easy Salmon Burgers With Dill Honey-Mustard, Horseradish, and Avocado Recipe

Name: Easy Salmon Burgers With Dill Honey-Mustard, Horseradish, and Avocado Recipe
Prep time: 10 min
Cook time: 10 min
Total time: 20 min
Yield: 4
Ingredients: 1 1/4 pounds boneless skinless salmon fillets, cut into 1-inch cubes; 1 small red onion; 1/2 cup fresh dill fronds, finely chopped; 2 tablespoons honey; 1 tablespoon prepared horseradish, divided; Kosher salt and freshly ground black pepper; 1/4 cup mayonnaise; 2 tablespoons Dijon mustard; 2 tablespoons extra-virgin olive oil; 4 toasted split rolls; 4 leaves Butter lettuce; 1 ripe Hass avocado, sliced