To a medium pot, add 2/3 cup (1 1/3 cups) water and 1/8 tsp (1/4 tsp) salt. Cover and bring to a boil over high.
Once boiling, remove the pot from heat, then add couscous. Stir to combine.
Cover and let stand for 5 min.
When couscous is tender, fluff with a fork.
2
Meanwhile, halve tomatoes.
Peel, then mince or grate garlic.
Drain capers, reserving brine, then pat dry with paper towels. Roughly chop one-quarter of the capers.
Zest lemon. Juice half the lemon, then cut remaining lemon into wedges.
Roughly chop dill.
Roughly chop spinach.
3
Heat a large non-stick pan over medium-high.
While the pan heats, pat salmon dry with paper towels, then season with salt and pepper.
When the pan is hot, add 1 tsp (2 tsp) oil, then salmon, skin-side down.
Pan-fry for 4-5 min, until skin is crispy. Flip and cook for 2-3 min, until golden and cooked through.**
4
Meanwhile, to a small bowl, add Dijon, mayo, chopped capers, half the lemon juice, 1 tsp (2 tsp) dill and half the garlic. (NOTE: Like extra garlic or dill? Add more!)
Season with salt and pepper, then stir to combine.
5
To a large bowl, add couscous, tomatoes, spinach, lemon zest, remaining capers, remaining lemon juice, reserved caper brine, 1 tbsp (2 tbsp) oil, remaining garlic and 1 tsp (2 tsp) dill.
Season with salt and pepper, then stir to combine.
6
Divide couscous between plates.
Arrange salmon over top, then drizzle with caper-dill sauce.