Grilled Salmon Burgers with Avocado Salsa

Ingredients

• 1 pound fresh salmon fillet, skin removed
• 1/4 cup breadcrumbs
• 1/4 cup finely chopped red onion
• 1 tablespoon Dijon mustard
• 1 tablespoon mayonnaise
• 1 tablespoon chopped fresh dill
• 1 teaspoon lemon zest
• Salt
• pepper
• Olive oil for brushing
• 2 ripe avocados, diced
• 1 small tomato, diced
• 1/4 cup diced red onion
• 1/4 cup chopped fresh cilantro
• 1 tablespoon lime juice
• Hamburger buns
• Lettuce leaves
• Sliced red onion (optional)
• Sliced tomato (optional)