Step 1

Place dill, water, lemon juice, vinegar, mustard, garlic, 1/2 cup avocado, 1/4 cup oil and 1/4 teaspoon salt in a blender. Process until smooth, about 30 seconds. Refrigerate until ready to use.

Step 2

Heat the remaining 1 teaspoon oil in a large cast-iron skillet over medium-high heat. Sprinkle salmon evenly with pepper and the remaining 1/4 teaspoon salt. Add the salmon to the pan; cook until golden on the bottom and mostly opaque around the sides, about 4 minutes. Carefully flip the fillets; remove from heat. Let the fillets stand in the pan until cooked through, 2 to 3 minutes.

Step 3

Combine salad greens, cabbage, carrots and the reserved dressing in a large bowl; toss gently until evenly coated. Divide the salad among 4 plates; top with the remaining avocado. Top each salad with a salmon fillet; garnish with additional dill, if desired.