Preheat the oven to 425F convection or 450F regular bake. Line a baking sheet with parchment paper.
Add the cauliflower to the baking sheet along with the oil, ½ teaspoon salt, and some black pepper. Use your hands to toss to coat well, then spread out into an even layer and bake for 20-25 minutes or until it’s beginning to char.
Make spaces on the baking sheet and place the salmon there. Drizzle each fillet with a touch of oil and sprinkle with the remaining ½ teaspoon salt and more black pepper, if you’d like. Rub around to coat. Bake for 10 more minutes or until the salmon is cooked through. Once the salmon has cooled a bit, you can peel off the skin, if you’d like.
To make the hummus, add everything to a blender or food processor and blend until smooth, using a tamper tool to help blend. You want the hummus to be liquidy/saucy, not thick and pasty. If it’s too thick or not blending, add more water.
To serve, scoop at least ¼ cup hummus into your bowl and use the back of your spoon to swoosh it out. Place the salmon on top, followed by the cauliflower and cucumber. Top with more cilantro, some black pepper, and a generous drizzle of good olive oil.