Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Peel and cube the yam into half-inch pieces, then toss with a light spray of oil, sea salt, and black pepper.
Roast the yam cubes for 20 minutes or until they are tender and slightly caramelized on the edges.
Boil the chickpea pasta in salted water according to the package instructions until al dente, then drain.
Rub the salmon fillet evenly with the jerk seasoning on all sides.
Heat olive oil in a non-stick skillet over medium-high heat and sear the salmon for 4 minutes per side until fully cooked and flaky.
In the same skillet, quickly warm the lump crab meat for 1 minute, seasoning with a tiny pinch of jerk spice.
In a warm bowl, combine the cooked pasta with Greek yogurt, nutritional yeast, and shredded cheddar, stirring until a velvety sauce forms.
Plate the jerk salmon topped with the crab meat, and serve alongside the creamy mac and roasted yams.
Garnish the entire dish with finely chopped fresh chives before serving.