In a small bowl, whisk together the Greek yogurt, lemon juice, Dijon mustard, Worcestershire sauce, minced garlic, and 2 tablespoons of the grated Parmesan to create the Caesar dressing.
Season the salmon fillets on both sides with half of the salt and pepper.
Heat olive oil in a non-stick skillet over medium-high heat; sear the salmon for 4 to 5 minutes per side until the internal temperature reaches 145°F (63°C).
Place the sliced kale in a large mixing bowl; add a pinch of salt and massage the leaves with your hands for 2 minutes until they become tender and dark green.
Pour the Greek yogurt dressing over the kale and toss thoroughly to ensure even coating.
Divide the dressed kale between two plates, top each with a cooked salmon fillet, and garnish with the remaining Parmesan cheese and croutons.