Dice Mango: Peel the mango and cut the flesh away from the pit. Dice the mango into small pieces and place them in a medium mixing bowl.
Add Red Onion: Finely chop the red onion and add it to the bowl with the mango.
Add Cilantro: Chop the fresh cilantro and add it to the mango and red onion.
Sweeten and Season Salsa: Pour the agave nectar over the mango mixture. Sprinkle ¼ teaspoon kosher salt over the salsa ingredients.
Add Lime Juice: Pour the fresh lime juice over the mango mixture.
Mix Salsa: Stir until the mango, red onion, and cilantro are evenly coated. Set the salsa aside while preparing the salmon.
Make Spice Blend: Combine the smoked paprika, chili powder, cumin, and ½ teaspoon kosher salt in a shallow bowl. Stir until evenly blended.
Season Salmon: Place the salmon fillets on a work surface. Divide the spice mixture evenly among the four fillets and coat the tops thoroughly.
Sear Salmon: Heat a grill pan or large skillet over medium-high heat. Place the seasoned salmon in the hot pan and cook for about 3 to 4 minutes on the first side, until browned.
Flip Salmon: Turn the salmon carefully with tongs. Cook for another 2 to 4 minutes, until the salmon is browned and cooked through. Remove it from the heat and set aside.
Prepare Cauliflower: Cut the cauliflower into florets small enough to fit comfortably in the food processor.
Rice Cauliflower: Add the cauliflower florets to the food processor and pulse in short bursts until they resemble small grains of rice. Avoid processing them into a puree.
Add Hominy: Add the drained hominy to the food processor with the cauliflower.
Pulse Together: Pulse briefly until the hominy is chopped and distributed throughout the cauliflower while the mixture still has a rice-like texture.
Cook Cauliflower Rice: Transfer the cauliflower and hominy mixture to a large skillet over medium heat. Cook for about 5 to 7 minutes, stirring frequently, until the cauliflower is tender and the mixture is heated through.
Add Parmesan: Sprinkle the grated Parmesan over the cauliflower mixture. Stir until the cheese is evenly distributed and begins to melt.
Add Chives: Stir in the dried chives and cook for about 1 minute more. Remove the skillet from the heat.
Assemble: Divide the cauliflower “rice” among four serving plates and add one cooked salmon fillet to each plate.
Top With Salsa: Spoon the mango salsa generously over each salmon fillet and serve immediately.