Preheat and prep: Heat the oven to 400°F (200°C).
Line a sheet pan with parchment for easy cleanup. Pat the salmon dry with paper towels.
Season the salmon: In a small bowl, mix olive oil, smoked paprika, garlic powder, cumin, salt, pepper, and lemon zest. Rub over the salmon evenly.
Roast: Place salmon on the sheet pan.
Roast for 10–14 minutes, depending on thickness, until it flakes easily with a fork and is just opaque in the center.
Cook the grains (if not prepped): While the salmon roasts, cook quinoa, brown rice, or farro according to package instructions. Fluff with a fork.
Make the dressing: Whisk tahini, lemon juice, olive oil, honey, and garlic. Add warm water a little at a time until it’s creamy and pourable.
Season with salt and pepper.
Prep the veggies: Slice the cucumber, tomatoes, and red onion. Cut the avocado just before serving to keep it fresh.
Assemble the bowls: Divide greens and grains among 4 bowls. Add cucumber, tomatoes, onion, and avocado.
Flake the salmon into large pieces and place on top.
Finish: Drizzle with lemon-tahini dressing. Sprinkle with dill or parsley and pumpkin seeds. Add a squeeze of lemon for brightness.
Serve: Enjoy warm or at room temperature.
Taste and adjust salt, pepper, and lemon as needed.