Preheat the broiler to the low setting. Line a pan with foil. Add the salmon fillets skin side on the pan. Brush barbecue sauce onto the salmon fillets evenly. Broil on low for 10 minutes, or until the fish flakes with a fork. Thinner pieces will cook faster so pay attention.
While the salmon broils, prep the kale. In a small bowl, using your clean hands, massage the oil into the kale (at least 3 minutes) until it starts to break down a bit. Drizzle on the lime juice. Set aside.
Heat the tortillas in a skillet or get a slight char by heating them over an open flame using tongs.
Flake the salmon into bite-size pieces. Assemble the tacos by adding the salmon and massaged kale to the warm tortillas.
Serve with a side of black beans for a complete meal.
* I used Trader Joe's Brand Barbecue Sauce. Feel free to make your own or use your favorite brand. But get a good one - it will make or break this dish!